Been watching re runs of Parker Lewis Can't Lose, in the episode Jerry: Portrait Of A Video Game Junkie, Barbara Billingsley appears as Ms. Musso's mother, and Jerry Mathers as her brother Theodore 'Teddy'.
Oh, and the title of the episode isn't referring to Jerry Mathers, but one of Parker Lewis' friends.

http://i1023.photobucket.com/albums/af351/Torgo70/Torgo70002/vlcsnap-2016-01-31-10h47m03s899_zpswpcdsjup.png (http://s1023.photobucket.com/user/Torgo70/media/Torgo70002/vlcsnap-2016-01-31-10h47m03s899_zpswpcdsjup.png.html)
http://i1023.photobucket.com/albums/af351/Torgo70/Torgo70002/vlcsnap-2016-01-31-10h48m24s598_zps7v0mjkx6.png (http://s1023.photobucket.com/user/Torgo70/media/Torgo70002/vlcsnap-2016-01-31-10h48m24s598_zps7v0mjkx6.png.html)
http://i1023.photobucket.com/albums/af351/Torgo70/Torgo70002/vlcsnap-2016-01-31-10h48m33s250_zpsxjexfot3.png (http://s1023.photobucket.com/user/Torgo70/media/Torgo70002/vlcsnap-2016-01-31-10h48m33s250_zpsxjexfot3.png.html)
http://i1023.photobucket.com/albums/af351/Torgo70/Torgo70002/vlcsnap-2016-01-31-10h49m11s979_zpsqsktyd7c.png (http://s1023.photobucket.com/user/Torgo70/media/Torgo70002/vlcsnap-2016-01-31-10h49m11s979_zpsqsktyd7c.png.html)
http://i1023.photobucket.com/albums/af351/Torgo70/Torgo70002/vlcsnap-2016-01-31-10h49m25s125_zpseftf83x3.png (http://s1023.photobucket.com/user/Torgo70/media/Torgo70002/vlcsnap-2016-01-31-10h49m25s125_zpseftf83x3.png.html)
http://i1023.photobucket.com/albums/af351/Torgo70/Torgo70002/vlcsnap-2016-01-31-10h49m40s358_zpssikcu9wv.png (http://s1023.photobucket.com/user/Torgo70/media/Torgo70002/vlcsnap-2016-01-31-10h49m40s358_zpssikcu9wv.png.html)