I echo the previous posters advice about HD/3GSDI. We use that for many of our HD shows. We tried to go with HD cat6 to DVI, but we never got it to function properly. Plus many of our switchers and cameras have SDI out or in, meaning we only have to convert once. We usually buy the converter boxes on Amazon and have had great success with them. Like anything, bring extra
Big thing to remember about those boxes. Make sure the send or receive 3GSDI. We don’t have much that generates full 1080P accept for MacBooks. But if the box doesn’t do 3G speed you won’t get your 1090P/60hz signal. At least not reliably