1st of 3 stories in Four Color #1208, titled Rocky and His Friends - Reprinted in Bullwinkle and Rocky #24 12/1979. - 8 pages:
Bullwinkle sees an ad to be on a Western so he and Rocky head west to audition. Boris and Natasha get orders to find a way to sneak in Pottsylvania propaganda into TV shows. The two pairs will collide.