Miami Vice was my favorite show when i was....hmmm I guess around 10 Yrs old? (Im 25 now). I was inspired by the show to get a S&W 645 but when i shot one and didnt like it, i started looking at the 4506. I dont really like it either. Not enuff to buy one anyway. So here i am with my 659 9MM. I like it alot. 14 rounds, stainless, looks similar to the 645 so im content.
Crockett carried a 645, detonics on his leg, and maybe a bren as said above although i dont remember seeing one. Tubbs, crocketts partner seemed to always have a S&W revolver. 38 special i assume, in blue.
Now when I watch the show I wonder what was so special about it. It really isnt all that great. Thats ok though. I still have great memories of it from when I was young and it was the coolest damn thing on TV.
P.S. Are you sure its on TNN. I thought it was on the USA network.