Operators Who Alter HDTV Re-transmission
In 2004, DirecTV subscribers reported that DirecTV broadcasts some HDTV-programming at a reduced resolution of 1280 x 1080i.
In September 2007, Dish Network reduced the resolution on HBO-HD and Showtime-HD from 1920x1080 to 1440x1080. These were the last two channels that Dish Network was still offering in the "full" 1920x1080 resolution.
In August 2009, BBC HD in the UK reduced the average data rate from 16 Mbit/s to 9.7 Mbit/s, after introducing new MPEG-4 AVC/H.264 encoding software. The resolution of BBC HD had been set to 1440x1080 since launch, following the practice established by the BBC HD Test channel. BBC mentioned limitations of existing HD video cameras, improved encoding scheme and a desire to deliver more HD channels within existing bandwidth among the reasons for this action. An increase to 1920 horizontal resolution was however, observed on 30 May 2012.
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