Porridge - Season 3 Episode 6 -

Godber is granted his parole and looks forward to dating Fletch's daughter though Fletch is not so sure. However the parole is jeopardized due to an aggressive convict,Jarvis,who wants to pick a fight with Godber,so Fletch arranges for Jarvis to get in a fight with some other cons and end up in the cooler before he can fight Godber,whose parole goes ahead. Fletch settles down to chat with Mr. MacKay,to whom he is about to tell three things,spelled out on his fingers but he stops at the second,giving the screw a secret V-sign.