M*A*S*H because certain feelings between the major characters were revealed/or confirmed and you finally got the sense of relief that they were all going home, even if some of them (throuought the run of the show) never made it home.
Mary Tyler Moore Show because it was hilarious as well as being sentimental.
The Nanny because it left off right at the point when everybody’s dreams came true.
Friends because you knew that everybody was going to be OK, and that everybody who should end up together, did end up together.
Will and Grace because you knew that although the 2 main characters could never have a real romantic relationship together, because one of them was straight and the other one was gay, you knew for a fact that they would love each other forever and their lives would always be intertwined.
Everwood because even though there were a lot of ups and downs and surprises and painful disappointments for all of the main characters, the 2 main people that should’ve ended up together (from what we saw in the very first episode) did end up together, and another another couple made an amazing, romantic coupling, after years of secret longing. And everything was OK.
Monk because he finally found out what happned with the “mystery situation”, was able to grieve and was able to love someone new, that just happened to have a common denominator to his agonizing situation, the “mystery situation” that was presented on the very first episode. Also, one of the old characters, that had been off the show for the last few seasons returned with a very happy announcement. Everybody was OK, everybody was happy, all was revealed and we were all able to move forward. Although I wept like a baby!