I saw Nanette Fabray and Johnny Ray in some of the pics, so I researched it. There was an every so often show that ran on CBS called Shower of Stars, and the November 1, 1956 episode starred Nanette Fabray, Johnny Ray, Jack Benny, and Bill Lundigan, Rory Calhoun, and Bob Crosby. Lundigan was known as the voice of Chrysler in the mid 50's and they sponsored it.
Funny thing is nothing on IMDB or anywhere else says it was done in color. But, the kinescope of that show is on youtube and Lundigan says at the beginning, "Live and in full color." I haven't watched it yet, but here's a link to it:
http://youtu.be/szptfW5QKbI
Edit: After watching a little I realize the announcer in the opening isn't Lundigan. I think it was Art Gilmore, who was the other voice of Chrysler until the late 60's.