At the beginning of episode #89 "Der Tag" Radar is seen lying asleep on his cot and a comic book is on his chest. The camera then pans to Frank Burns. Moments later, when the camera returns to Radar, a different comic book is now on his chest. The first comic is issue #72 of Marvel Comics "Avengers" published January 1970. The second comic is a different issue of the same title, "Avengers" #60 published January 1969. Interestingly enough, both these comics were later seen (as well as issue #81 of "Spiderman" which was published in February of 1970) in episode #92 "The Novocaine Mutiny", when Frank Burns is conducting a search of Radars' work area.