Schedules for the next round of TV coverage of the 2008 Charterhouse Heritage GT Car Challenge have been announced.Highlights of the races at Thruxton on 28/29 June will first be screened on Sky Sports 2 during the early evening of Tuesday 15 July, with a further four repeat broadcasts.The provisional broadcast schedule is as follows:Tuesday 15/07/08 at 18.30 on Sky Sports 2Tuesday 15/07/08 at 21.30 on Sky Sports ExtraTuesday 15/07/08 at 23.30 on Sky Sports ExtraWednesday 16/07/08 at 01.30 on Sky Sports ExtraWednesday 16/07/08 at 14.30 on Sky Sports 3