1. Is there a type of story (humor, musical, costume drama, etc.) that your show should never do again?
See Wormhole X-Treme, The Other Guys and Avenger 2.0 for response to that one. Wait...don't subject yourself to them.
2. Is there a character or guest star you wish had never returned (would never return)?
See last two eps listed above...(read Felger).
3. What episode made you realize a show was past its prime (jumped the shark in ‘net speak)? Did you continue watching?
I'm torn on this one. Possibly Meridian for SG-1, but really it started with D&C. Sad to say, yes. I'm in it for the eye candy and all too rare special moments at this point.
4. What series finale did you hate?
X-Files. Just...wrong.
5. What made you give up on a show?
For JAG it was when they destroyed the wonderful character of Clayton Webb as a plot device for tension between Harm and Mac. I admit, I was one of the fools who thought Mac and Webb would be a good pairing, not realizing how bad they'd screw it up. Careful what you wish for kids.