The old Columbo's are good as well, at least when A&E began showing them a few yrs back, but the best is Sherlock Holmes, with Jeremy Brett :-)
I love all the old Columbos as well, especially when he shows up with his basset hound 'Dog'...poor animal, Columbo never can decide on a name to give him, so just calls him 'Dog'...but that basset just kills me, and Columbo seems to love him so...spoils him rotten, feeds him ice cream cones, takes him for walks to the ocean side, takes him with him in the car, whenever he is on a case...
I also like Sherlock Holmes, tho my favorites are the old ones with Basil Rathbone...but Jeremy Brett is wonderful also...