Schedules for the next round of TV coverage for the Charterhouse Heritage GT Car Challenge have been announced.Coverage of the pair of races on the Brands Hatch GP circuit during the A1GP meeting at the end of April will first be screened in Sky Sports Xtra during the evening of Tuesday 29 May.The provisional broadcast schedule is as follows:Tuesday 29 May at 19.30 on Sky Sports XtraWednesday 30 May at 03.30 on Sky Sports XtraWednesday 30 May at 09.30 on Sky Sports 2Wednesday 30 May at 14.30 on Sky Sports 3The race action in the series for GT and touring cars of the 1960s and 1970s continues at Snetterton on 2/3 June.