See the two links below. Animal Planet broadcasts episodes for the U.S. market and Channel 4 of the BBC broadcasts episodes for the U.K. market.
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channel 4
CHANNEL 4
Channel 4 + 1 is on Channel 13 on Freeview.
Channel 4, the British TV channel, began broadcasting on the 2nd of November 1982.
The channel More 4 is a digital television channel in the United Kingdom, it is a sub-channel of the British public-service television broadcast Channel 4.
Channel 4
Channel 4 news
we have a cable box now and its set for channel 4, our sanyo tv model # DS32224 is preset to channel 3. Is there anyway to change it to channel 4?
Channel 4 is a British operated public television broadcasting company. You can view Channel 4 videos on their official website, or on their actual television channel.
A 4 channel will work for your door speakers. But the idea setup would be a 5 channel 4 for your doors. Then have 1 channel for a sub.