I can't really speak to Setanta's HD quality, but I do know that their SD picture looks way worse than before. Streams on the internet look much, much better. I'd rather have a good looking SD picture than a picture with a messed up framerate, SD or HD. It doesn't make any sense how they screwed this up and can't fix it, its almost like they can't take the extra bandwidth or something.
Digital79, I'm assuming you mean Europa League game, Liverpool didn't qualify for the Champions League this year. No I don't think it is because TLN's contract only covers the group stage through the final.