One of the best programs ever made. I love it and as everyone has said, it just doesn't get old and you still laugh even when you know what's coming. It's funny, clever, witty, and touching. David Jason and Nicholas Lyndhurst are just perfect (didn't David Jason originally go for the role of Rodney? Sure I read that somewhere), but the whole supporting cast is excellent too. Always had a soft spot for Grandad and Uncle Albert.
Impossible to pick a single favourite episode or moment, there are so many. When Albert is doing his 'shocked' bit that he rehearsed with Del when Rodney tells them he's going on a date with another girl when he and Cassandra broke up, and keeps doing it in the wrong place, gets me every time. You can see David Jason laughing too. I also love the Groovy Gang episode, Batman and Robin, Del in the bar, blow up dolls, Rodney in his Gladiator outfit, 'Gary', I could go on. Absolutely brilliant program.