It's a great show. I haven't really watched it much in the last several years. I feel like it would be really weird now that I'm so used to seeing Joseph Gordon-Levitt as an adult actor in stuff like
The Dark Knight Rises, 500 Days of Summer, 50/50, and
Inception.
The thing that always struck me about the show was that it always seemed like the cast was having so much fun. I don't know if that's really true or not but they always gave me that impression.
My favorite episode is the one from Season 6 where they decide that they need to try to be more "American." But then, when they read the part in the Declaration of Independence about all men being equal, they misinterpret it and it takes nearly no time at all for Sally, Harry, & Tommy to form a Soviet style dystopia with Harry as their absolute ruler.
My favorite in-joke is when William Shatner first appeared as the Big Giant Head. When he first gets off the airplane, he mentions that he saw some THING on the wing of the plane. Dick replies, "The same thing happened to me!" Both Shatner & Lithgow starred in the
Twilight Zone story "Nightmare at 20,000 Feet"-- Shatner in the original TV version and Lithgow in the 1983 movie version.
I never really noticed any particular dip in the writing quality. I thought that the show maintained pretty good consistency over its 6 seasons. (In that respect, I'd actually put it above some of its Must See TV contemporaries, although that's not entirely fair since some of the other shows lasted quite a bit longer. Still, I noticed much bigger drops in quality during the last couple seasons of
Seinfeld after Larry David left the writing staff and during the 2nd half of
Frasier when the show started repeating itself a lot.
NewsRadio stumbled quite badly during its final season but that couldn't be helped given Phil Hartman's death.)
Since this thread was sparked by a random memory, I'd point out that my brain keeps making all of these connections between
3rd Rock from the Sun and the
Stargate franchise. French Stewart played Lt. Ferretti in the original
Stargate movie and also played a scientist in an episode of
Stargate Universe. I think that one of Dick's students was also that fireman that Samantha Carter was dating during the 7th & 8th seasons of
SG-1. Joseph Gordon-Levitt was in
The Dark Knight Rises, which I believe takes place in the
Stargate universe, what with William Devane being the President in both of them (although that doesn't explain why Teal'c seems to be working for Bane

).
Also, if you need something to put you in a good mood...