Wow! That's less than half of the series!

was it only 73? i thought she played in more. Then again, that does seem right since she was hardly around in the first season.

Because for the first couple seasons she was off at Princeton so, she wan't around the house that much.

That's exactly why I felt it was silly to consider her a "regular". In my opinion, someone who appears in less than half the episodes should not be featured in the opening credits. Even during the 8th season, when Sondra and Elvin supposedly moved back in with her parents, we hardly saw them...

Well, I'm sure they didnt like living with Clff and Clair and they had their own life so, they were out and going places. If you were living with your parents with you husband and twins would you eant to be around their house all the time?

I think Sondra should've never been on the show in the first place. I didn't like her character at all.

Funny, I liked her but I found Elvin annoying. He got better later on.

I like both Sondra and Elvin, and feel that they are both important parts of the show.