Toons After Dark: Where's Huddles? On stage! (The Offensives, 1970)
When a rival team's lineman moonlights as a musician, Ed Huddles (Cliff Norton) & Bubba McCoy (Mel Blanc) dust off their own act, much to the consternation of their wives (Jean VanderPyl & Marie Wilson) and Claude Pertwee (Paul Lynde), whose cousin is the rival player's agent.
Here's episode 4 of Where's Huddles?, "The Offensives". The episode card was edited off.
Funny that Claude should name check Ted Mack, whose show was running on CBS at the time.