openmedia: Major issues with TV3 on Tuesday with MythTV. Recorded What's really in our food and had major macroblocking etc. All other channels off that transponder where fine.
I might persuade the PVR to pick TV3+1 over TV3 for a while until I resolve the problem.
Last night I noticed that the encrypted channel of TV3 (via Sky), was noticeably cleaner than the 4 Freeview channels carrying TV3. Not sure why they did that because TV3's SD channel is FTA anyway, so why have a 5th channel carrying exactly the same stuff as one of the other 4 on FTA?
All of the 4 Freeview channels exhibited obvious macroblocking as you say, and generally looked like crap every time something in the picture moved significantly.