GSN skipped 9 episodes of MG 75, the entire week with Jimmie Walker, BS, GB, Lee Meriwether, RD, JB and 4 episodes with Leslie Nielsen, BS, GB, PD, RD, MW, airing only the last one.
For the Goodson-Todman library, the digital master tapes that GSN uses to broadcast contain 3 episodes each. That these 9 episodes were skipped means that, for whatever reason, the 3 digital master tapes with those shows aren't available. (Whenever GSN skips episodes of MG, it's usually done in multiples of 3.)
In any event, I've heard that one of the nine episodes skipped featured Johnny Olson sitting in for Gary Burghoff. Anyone have any further info or recollections on this?