Personally I really like Womble MPEG video wizard though I haven't found a suitable solution for HD .TS files
http://www.womble.com/index.html
http://www.womble.com/index.html
I've been using VideoReDo TVSuite H.264 (legal) on a second computer for commercial removal. Broadcasters are getting savvy about comskip utilities and are constantly bumping commercials up against programming without any breaks whatsoever. I find it faster to manually skip through the recording, rather than using Ad-Detective, mark and remove commercials. It does a fair job at remuxing to h.264, but the files always end up larger than Handbrake. So I batch the edits in VideoReDo, then batch Handbrake to convert overnight, then use Renamer to sort the episodes for TV-Series. Any recordings that we don't save for TV-Series, we just use the skip feature in MP to get through commercials.