I vaguely remember this show - I think it was syndicated at one point. I do NOT remember the hostage situation though!
aboiut that time (70's) A friend of mine was getting gas in his motorcycle and went to pay walked in on a robbery , he was still wearing his helmet and noticed it was a real looking BB gun, he knew his guns, he flipped the visor down head butted him and beat the crap out of him and held him for the cops
Is that Harold Ramis?