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Poll #863643 Watching TV

How do you receive the TV programming you watch?

Analog[ue] terrestrial
6(12.0%)
Analog[ue] digital (eg Freeview)
1(2.0%)
Satellite
6(12.0%)
Cable
11(22.0%)
Other (BitTorrent, etc)
12(24.0%)

Do you prefer the HD option?

Yes
8(16.0%)
Yes, if I could, but it's too expensive
12(24.0%)
I might, but it's not available
7(14.0%)
Not bothered
23(46.0%)

What do you watch TV on?

Laptop
4(8.0%)
Desktop
8(16.0%)
TV <30"
19(38.0%)
Honking huge TV or projector
2(4.0%)

What decodes it all?

The TV
10(20.0%)
The media player on the computer
13(26.0%)
A set-top box
15(30.0%)

What do you generally record TV on for keeping?

magnetic tape
11(22.4%)
CD-R/DVD-R
23(46.9%)
Generally don't bother storing, only timeshifting
15(30.6%)
 
 
 
 
 
 
At the moment, most of the transponders on UK DTT are 8MHz 16QAM giving 18 megabits/second. The two ITV run transponder (A and 2) are at 64QAM with 24mb/s. (Which combined with using stretched A/R is why they have more channels)

After switchover, all channels should become 16QAM. Which theoretically gives you 4 blocks of 6mb/s extra bandwidth. Mux 1 and Mux B will become PSB 1 and PSB 2, and use up the entire bandwidth on MuxB taking over the 'Main Channels' currently on analog.

There are no current plans to create new country-wide transponders.

This leaves each of the BBC, ITV, C4 and Five with a block of 6mb/s to try and put HD content in if they want. However, the HD content the BBC puts out on Astra in H.264 is 22mb/s. Even reducing complexity while still being 'HD' would only get you down to 18mb/s. So even before you get to the issues of having new set-top boxes, you have the problem that you'd be loosing SD channels to make space for HD. (Unless you replace all DTT boxes with ones that can downsample the HD content and use the HD channels as replacements.)

Nationwide multiple channel HD on UK DTT doesn't look workable at the moment.