I like the video replay in football, but the refs are so damn slow. According to the rules there's supposed to be "indisputable video evidence" to overturn the call, which to me means it should be obvious within 15 seconds. If it takes longer than that the call on the field stands. And why when the refs have to confer or do they have to do a video review do they stroll over like they have all the time in the world. Run, you old fucks. Then the ref has to announce the call like he's telling us the next pope. Just spit it out from where you're standing and get on with it.
The hockey refs for the most part are a lot quicker about making tough calls. I would like to see shots that may or may not have crossed the goal line be reviewable, not just offsides.