Early in the show when Starsky and Hutch are walking on the docks, a truck tries to run them over and they dive out of the way between a large dark sedan and their Torino. In the next shot of the two, the Torino is gone, and Hutch runs off after the truck, running right through where the Torino would have been parked.
The opening front door of Netherworld Science is not the same door that opens to the interior of the house. There is a light switch on the right hand side of the wall that is not there after they enter the house.
When S&H enter the apt. to find a man dying on the floor, Hutch utters: "What the Fff" but expletive isn't pronounced.