I have to say I'm envious of the writers of this show. They've written series after series of this show (I'm currently half way through series 7, and will be gutted when it ends) - and it never gets boring. There's very rarely an episode that goes by that doesn't make me laugh, and have tears (of mirth) rolling down my cheeks. That 70s Show is hilarious. Many other programmes would have gotten boring long before now, but the writers clearly have a skill that keep fans watching, and keeps the characters developing.
It's a shame that the original 'Laurie' didn't continue to play the part, just as her role becomes a little more focussed in this series as the new one doesn't pack such a punch. However, all the other characters are their usual selves and had me giggling along from start to finish. I will mourn the end :(