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- Maité (ETB, 1998) 13 episodes of 60 minutes. Comedy about a Basque businessman who marries a Cuban girl.
- Majoria absoluta (TV3, 2002–2004) 64 episodes of 50 minutes. Comedy about a large family of Barcelona. Catalan.
- Makinavaja (La 2, 1995 & 1997) 26 episodes of 30 minutes. Comedy about a criminal based on a comic strip of the same name.
- Mamá quiere ser artista (Antena 3, 1997) 9 episodes of 53 minutes. A frustrated artist wants to turn his daughter in showbiz star.
- Maneras de sobrevivir (Telecinco, 2005) 13 episodes of 50 minutes. Comedy about a group of thirtysomethings.
- Los maniáticos (TVE, 1974) 13 episodes of 50 minutes. Daily life of a quirky family, consisting of Don Juan, the father, a widower that have his peace disturbed with the arrival of their daughter Lola, his son Paul and his grandchildren.
- Maniàtics (Canal Nou, 2007–2008) 52 episodes of 50 minutes. Comedy about eight characters with many quirks.
- Manolo y Benito Corporeision (Antena 3, 2006 – 2007) 12 episodes of 70 minutes. Sequel of Manos a la obra.
- Manos a la obra (Antena 3, 1998 – 2001) 130 episodes of 60 minutes. Comedy about a pair of very sloppy blue-collar workers.
- Mañana puede ser verdad (TVE, 1964–1965) 6 episodes of 50 minutes. Unrelated plots of fantasy and science-fiction.
- Mar de dudas (TVE, 1995) 13 episodes of 45 minutes. Series that included a debate where audience chose the final.
- Mar de fons (TV3, 2006–2007) 40 episodes of 35 minutes. Soap opera about two families of Barcelona faced by a publisher. Catalan.
- El mar y el tiempo (TVE, 1987–1988) Miniseries 5 episodes of 40 minutes. A Spaniard exiled in Argentina returns to Spain in the spring of 1968 to reunite with his family. However, things have changed.
- Marcelino, pan y vino (TVE, 2000–2001) 26 episodes of 25 minutes. Animation. A child is raised in a convent.
- Marco (Antena 3, 2011-2012) Miniseries of 2 episodes. Live action version of the anime 3000 Leagues in Search of Mother.
- Mareas vivas (TVG, 1998–2003) 107 episodes of 60 minutes. Reality of a Galician fishing village located on Costa da Morte.
- La Mari (Canal Sur/TV3, 2003) Miniseries 2 episodes of 60 minutes. In the 1970s an Andalusian emigrates to Catalonia.
- La Mari 2 (Canal Sur/TV3, 2009) Miniseries of 2 episodes of 60 minutes. Sequel of La Mari.
- Maridos e mulleres (TVG, 2006) 26 episodes of 60 minutes. Lives of four families in a residential community. Galician.
- Marisol (Antena 3, 2009) Miniseries of 2 episodes of 75 minutes. Biopic of the catres Marisol.
- El marqués de Sotoancho (Antena 3, 2009) Miniseries of 2 episodes of 60 minutes. A Marquis in his forties who lives with her mother has to marry to keep his farm.
- Martín (ETB, 2003-¿?) Episodes of 75 minutes. Comedy about a sportscaster and his family.
- ¡Más que amigos! (Telecinco, 1997–1998) 29 episodes of 60 minutes. Comedy about a group of thirtysomethings who share a flat.
- La máscara negra (TVE, 1982) 11 episodes of 50 minutes. A noble struggle against Joseph Bonaparte and the French.
- Matalobos (TVG, 2009–present) Episodes 50 minutes. About a Galician family of drug-dealers. Galician.
- Matrimonis y patrimonis (Canal Nou, 2005) 13 episodes of 60 minutes. A man mysteriously disappears.
- Matrimonio con hijos (Cuatro, 2006–2007) Comedy. Spanish adaptation of Married... with Children.
- El mayorazgo de Labraz (TVE, 1983) Miniseries of 4 episodes of 60 minutes. Adaptation of a novel by Pío Baroja.
- Me alquilo para soñar (TVE, 1992) Miniseries of 6 episodes of 55 minutes. Adapted from a story by Gabriel García Márquez.
- Mecanoscrit del segon origen (TV3, 1985–1986) (TV3, 1985–1986) 7 episodes of 30 minutes. Adapted from a novel by Manuel de Pedrolo. Young Alba and Didac, become virtually the only survivors of the Earth after aliens removed almost all of humanity. Catalan.
- Media naranja (TVE, 1986) 23 episodes of 54 minutes. 23 episodes of 54 minutes. Comedy about the convivence of Julia, a young enterprising, lively and energetic and Luis, a shy and timid.
- Médico de familia (Telecinco, 1995–1999) 119 episodes of 60/70 minutes. Tribulations of a young doctor, a widower with three children and a teenage nephew in charge, who must rebuild his family life.
- Mediterráneo (Telecinco, 1999–2000) 26 episodes of 50 minutes. Ricardo, a man uninterested in animals, is appointed director of a natural park in which he is attracted to the veterinarian Clara.
- La memòria dels Cargols (TV3, 1999–2000) 26 episodes of 45 minutes. Comedy about the Catalan family the Cargolls over 700 years, from the Black Death to the present. Catalan.
- Menos lobos (TVE, 1992) 13 episodes of 25 minutes. Comedy about three professionals who are roonmates.
- Menudo es mi padre (Antena 3, 1996 – 1997) 60 episodes of 70 minutes. Comedy about a taxi driver and his family.
- Mesa para cinco (La Sexta, 1996–1997) 22 episodes of 30 minutes. Five brothers lost their parents in an accident and have to live on their own.
- Metamorfosis (TVE, 1987) Miniseries 2 episodes of 90 minutes. Based on a novel by Stefan Zweig and set in Germany in the 1920s.
- Mi gemela es hija única (Telecinco, 2008–2009) 54 episodes of 40 minutes. Twins sisters separated at birth meet as adults and choose to change their lives.
- Mi gitana (Telecinco, 2012) Miniseries of 3 episodes. Biopic of Isabel Pantoja.
- Mi hijo y yo (TVE, 1962–1963) 26 episodes of 25 minutes. Difficult coexistence between a mother and her son, burdened by the clash of generations.
- Mi querido Klikowsky (ETB, 2005–present) Episodes of 60 minutes. A London falls for a Basque woman and goes to live Eibar.
- Mi teniente (TVE, 2001) 5 episodes of 60 minutes. Series about the Spanish Civil Guard.
- Miguel Hernández. Viento del pueblo (TVE, 2001) Miniseries of 2 episodes of 90 minutes. Biopic of Miguel Hernández.
- Miguel Servet, la sangre y la ceniza (TVE, 1988) Miniseries of 7 episodes of 60 minutes. Biopic of Miguel Servet.
- Las mil y una...Américas (TVE, 1989–1991) 26 episodes of 23 minutes. A young boy reads a book about different nations which lived in America before it was discovered by Columbus and imagines being there.
- Los mini Fruitis (TVE, 1992) 26 episodes of 11 minutes. Animation. Adventures of anthropomorphic fruits.
- Mino, el pequeño soldado (TVE, 1986) Miniseries of 6 episodes of 60 minutes. A boy searches for his father during the World War I.
- MIR (Telecinco, 2007–2008) 26 episodes of 75 minutes. Series about doctors.
- Mirall trencat (TV3, 2002) Miniseries of13 episodes of 50 minutes. Life of a Catalan gentry family from the late nineteenth century to the Spanish Civil War. Catalan.
- Mis adorables vecinos (Antena 3, 2004–2006) 62 episodes of 90 minutes. Comedy about a working-class family who, after their daughter becomes a child star, move to live in a high-class district.
- Miscelánea (Canal Sur, 2008) 13 episodes of 10 minutes. Animation. Series to teach healthy habits to teens.
- Los misterios de Laura (TVE, 2009–present) Episodes of 80 minutes. Detective series about a mother and police.
- Los mitos (TVE, 1979) 13 episodes of 50 minutes. Independent episodes that shows a revision of various myths.
- Mocland (TVE, 1979) 26 episodes of 25 minutes. Animation. A planet is without energy because of an evil general.
- Mofli, el último koala (TVE, 1986) 13 episodes of 30 minutes. Animation. In the 21st century there is only one koala alive.
- El món màgic del màgic Bruffi (TV3, 1985) 26 episodes of 25 minutes. Puppets. Catalan Folktales.
- Moncloa ¿dígame? (Telecinco, 2001) 13 episodes of 20 minutes. Comedy about the office of the press department of the Moncloa.
- Monetes del espacio: (Cartoon Network, 2012-present) Episodes of 2 minutes. Animation. Two alien monkeys are investigating Earthlings customs.
- Los Moreres (Canal Nou, 2007–2008) 100 episodes of 25 minutes. Soap opera. Catalan.
- Mortadelo y Filemón (Antena 3, 1994–1995) 27 episodes of 30 minutos. Animation based on the comic of the same name. There are some short subjects of the same title of the 1960s-1970s.
- Motivos personales (Telecinco, 2005) 27 episodes of 80 minutes. Mistery drama.
- Una mujer de su casa (TVE, 1972) 13 episodes of 30 minutes. Comedy about housewives.
- La mujer de tu vida (TVE, 1990) 7 episodes of 60 minutes. Independent episodes about various types of women.
- La mujer de tu vida 2 (TVE, 1990) 6 episodes of 60 minutes. Sequel of the latter.
- Mujeres (La 2, 2006) 13 episodes of 60 minutes. Tragicomedy about some women from a district of Madrid.
- Mujeres insólitas (TVE, 1977) 13 episodes of 60 minutes. Series about historical women.
- Mujeres solas (TVE, 1961) 15 episodes of 15 minutes. Comedy about four girls staying in a residence.
- El mundo de Chema (Cuatro, 2006) 11 episodes of 30 minutes. Gag series about a man posing as women to live with a woman he loves.
- El mundo de Juan Lobón (TVE, 1989) Miniseries of 5 episodes of 60 minutes. Atavistic fight for control of land between Juan Lobón, a poacher, and the owners of the plots in rural Andalusia in the Spanish Civil War.
- Museo Coconut (Neox, 2010–present) Episodes of 25 minutes. Surreal comedy set in a museum.
Read more about this topic: List Of Spanish Television Series