"King" Kenny (Kenneth) Roberts on "To Tell the Truth" Game show !

(Sorry for the poor quality)
So I'm home sick (COVID) and watching the old game-show channel and to my amazement K.R. comes on this old gameshow (from around 1974 ?)
He is one of the contestants who tries to fool the celebrity panel,
as to whether they are telling the truth or not...
Apparently he's too honest, because he lost !
Never heard of his appearance in this before, great to see and glad I stumbled on it..
A blast from the past I wasn't expecting !
Good Times !!
** I searched and couldn't find any other footage of this **