ColinJ said:My sister and brother-in-law bought an HD-ready LCD TV from Aldi a couple of years back and I thought its picture quality was awful until they got HDTV on Freesat, then I realised that it was the old Freeview box/broadcast quality that was bad. BBC HD now looks stunning as do Blu-ray DVDs, so the TV was obviously always capable, it was the quality of the source material that was poor.
SD digital sucks basically. BBC1 is good. Five can be. Some of the others can have their moments. As User says some of the cable/sat channels can be comically funny how bad they are.
A lot of source material these days is pretty good. I know that some of the source material that looks dreadful is good. It will be interesting to see for example how good Top Gear looks in a few days time as it is being shot in HD for the first time and BBC2 looks noticeably worse than BBC1.
Unfortunately HD is going the same way as SD went and BBC HD has already started to go into terminal decline.