Who/what are your favorite colt starting/training videos to watch and what platforms do you watch them on? 

I haven't watched A LOT of colt starting videos vs. other training videos.  I do like Craig Cameron a lot

I mainly want to suggest Giddy Up Flix - it is a DVD rental site - check it out - they are based out of Washington, I think, so the closer you are to WA the quicker you will get them in the mail and be able to watch and turn around and send back to get another.....or you can keep one as long as you need and just pay montly until you are ready for another.  I would take notes on some I would get so I could return for another. There are different prices per month depending on how many DVD's you want to have at one time (I would do one at a time).  It can also help you decide if you want to invest in purchasing the video outright, as well.

It is a neat, easy system - fun looking through all the choices they have, too.  There are so many. I found an old one that made me realize that some of these newer trainers are just reinventing the wheel and taking credit for certain training methods.

You can even cancel for a while and start up again.

I have recently joined horsepro.tv it is $13 per month and offers a wide variety of videos from colt starting, cutting, barrel racing, etc. I have enjoyed it and think it was worth the investment!

AGREE! It's well worth it!!  Great service!  Only thing that would make it better is if they added roping.