Just got my hands on a sample mkv file of what i'll be watching for the entire 2007 season (itv telecast).
It has 4 independent windows, top left is camera angle 1 (its blank for the screenshot only - don't know why) bottom left is camera angle 2, top right is track info (temperatures, location of cars, track status etc) and bottom right is the timing page with driver positions and sector times etc.
Probably the most fascinating way of watching the race, just means i'll have to watch ch10's coverage first then this format 2 days later (takes that long for the person to create it).