I was reading an August 1965 issue of RHYTHM & NEWS (a local L.A. publication) and it reported that the rock group "The Missing Links just filmed a segment for McHale's Navy". I know it would seem strange that a 1960's rock band would make an appearance in a sitcom set during WWII...but the band The Factory appeared on F-Troop set in, of course, the post-Civil War.

Can anybody think of an episode of this series that featured a rock band? Maybe the opera episode?