Deliberate mistake: When the show premiered on March 18th, 1981 Ralph's last name started out as Hinkley, but after a couple of episodes had aired on TV, on March 30th a man named Hinckley shot then U.S. President Reagan and three other people, so in the remaining episodes of season 1 Ralph's last name was changed to Hanley. His last name was changed back to Hinkley in season 2.
The Hit Car - S1-E3
Deliberate mistake: When Starlet asks Ralph if he believes that stars can predict his future, Bill tells them to put a dimmer on the googoo eyes because of the killers on their tails, and the two shots facing Bill are flipped. (00:14:40)
The Hit Car - S1-E3
Deliberate mistake: While Bill and Ralph are with Starlet in the motel room and the shooting starts Bill tells Ralph to go get the guys, and when Ralph changes into his suit and flies out of the window, the shot inside the bathroom is a flipped shot. Not only is Ralph's watch on the wrong wrist in this shot, but later the bathroom is shown the correct way. (00:15:15)
Deliberate mistake: After Ralph puts the suit into the trash can, when it cuts to Stovington Siding with the hijacked trains one of the shots is flipped, note the "102" is backwards. (00:24:40)
Just Another Three Ring Circus - S2-E12
Deliberate mistake: While they're in Yuri's tent, when Bill is standing in front of the tent wall Ralph describes all the good vibes he's getting about Yuri, and then Bill exits the tent. A few shots later, after the shot of the elephant sliding off the red pedestal, there's a shot of Bill standing in front of the tent wall, despite the fact that he left the tent, and note this shot is flipped. (00:10:50)