Yeah the OP would learn the language of bad, bad hombre
To the OP's previous quetsion, the channels and novelas I mentioned, would use Mexican Spanish (Univision/Televisa & Azteca novelas) and mixed Mexican/Colombian/Venezuelan Spanish on Telemundo.
The OP can even subscribe to Netflix and Hulu here there are many novelas and series from the above channels + additional ones from Colombia.
What about American movies dubbed into Spanish? Do they use Columbians for that?