What is interesting is that I have been burning some of these eyetv programs to DVD and watching them and they look fine. Going to do some direct comparisons this weekend.
Minor follow-up because I was away from home for the previous post ... It's the de-interlace settings that are probably giving you the quality problems if the raw data is playing back fine elsewhere. I genuinely can't advise which setting will work best for you cause it's so subjective, but I really think that this is where you'll find the biggest improvement.
Cheers!
Jim