70's Cartoon Based on Prime Time TV Show?

Which of these cartoons from the 70's based on a prime time TV show did you find the lamest?

Please give an actual explanation so I can decide who gets the 10 points.

Fonz and the Happy Days Gang

Fonzie and crew are stuck travelling through time

Laverne & Shirley in the Army

Based (loosely) on an actual episode from the prime-time show.

Laverne & Shirley are in the army; their commanding officer is a talking pig.

Mork and Mindy Cartoon

Pretty much the same goofy stuff that happened on the prime-time show, only Mork has an alien dog now.

Gilligan's Planet

Once again, pretty much the same stuff that happened on the show, only now Gilligan and crew are on another planet.

Brady Kids

Marcia, Jan, Cindy, Greg, Peter, and Bobby are on one adventure after another.

Patridge Family (in the 25th century)

Continuing the Brady-Patridge battle, the Patridge Family also get a cartoon; they're living in the future now.