Andy griffith show:season 3-episode31(moutain wedding).In the scenes just before the snoring scenes in the cabin,theres Andy ,Briscoe, @ Barney, lined up talking to Ernest t. Bass. In this order from left to right. Then they cut to Ernest t., retreating to the woods. In the next frame they show Andy @ Barney have switched positions.
they did not really switch sides, what happens is, earnest takes off in the woods passing them, so they all 3 have to turn around to watch him leave behind them. this is evident in that earnest takes off to the left, and in the scene where they are "swapped", you can see the tree earnest was originally hiding behind.