I can only think of a couple: Linda Lavin & Martha Raye's duet of "Do Ya Think I'm Sexy"(!) (people, let me know when this airs!) and I think she also sang "Don't Fence Me In". I know she sang a lot of show tunes, but I don't remember which ones.

It's Wonderful - Episode "My Son the Dropout"
I Got Rhythm
New York Revue with Joel Grey in Season 7
True Love - Vera's Wedding unfortunately syndication edited that one out
As Time Goes By - When Tommy's basketball teammate had a crush on Alice
It Had to Be You - Season 1 the pilot episode
Hey It's Only A Paper Moon - Season 3

Linda was at her best in singing those show tunes since that was her background musically. If you remember her special in 1980, Linda In Wonderland, she was outstanding in that show.

Whom I would like to have seen guest starred on Alice was Nancy Dussault, Too Close for Comfort fame, and see them sing together. It would had been on. Nancy is an outstanding singer.

Didn't she also sing "De-Lovely"?

I'm trying to forget she ever sanged on the show period.

I'm trying to forget she ever sanged on the show period.
Like Brian said, she was waaaaaay better than Judy Cohen (Good Times):lol: