Cuckoo in the Nest
Synopsis
An early version of Tell the Truth. Three contestants appeared, saying "My name is... and I'm a <insert job here>". Two were genuine, one was the cuckoo. 'Celebrity' panel asked contestants questions then had to guess the cuckoo.
The cuckoo was allowed to lie and the other two had to tell the truth at all times. Generally on around lunchtimes, maybe graduating to the come-in-after-school slot of 3:30 for later series. Alan Coren was a regular panellist, as might have been The Amazing Kreskin.
