I would assume like any other PPV about 3-4 hours in. The undercard is five 6-rounders and a 10 rounder...so that's three hours right there if everything goes the distance, and allowing for a bit of talk & pageantry time. My guess would be between 9:30 and 10am for you blokes; and between 4:30 and 5 for me !
email I just got from seconsdout 'The feed commences in the UK at 6.30am on Saturday October 3rd with the main event expected about 90 minutes later.'
Tua is gonna smash him early I reckon. If it goes past six, Cameron on points, doubt Tua has the engine he used to.