Got a box set of Columbo a few years ago and I'd never watched it before and like many people here are saying, each episode is almost movie length and brilliant

Got a box set of Columbo a few years ago and I'd never watched it before and like many people here are saying, each episode is almost movie length and brilliant in its own right, and the format of 'you the viewer know who did it, how can Columbo figure it out' is fantastic. One striking thing is that technology often plays a part - technology that would have been 'clever' at the time. e.g. "The Most Crucial Game" the bad guy uses a radio to pretend he's still in a private box at a football statium. In "Fade in to Murder" the bad guy provides an alibi for himself by drugging a friend, changing the time on his watch and then watching a VCR recorded football match with him, pretending that its live. There are lots of things like that, I suppose the never ending quest for clever twists led the writers to lots of gizmos and gadgets of the time.