CARLTON BUYS STAKE IN CENTRAL INDEPENDENT TV Carlton Communications Plc <CCML.L> said in a statement it had purchased a 20 pct stake or some 5.1 mln shares in Central Independent Television from Ladbroke Group Plc <LADB.L> at 578p per share. The consideration of 29.5 mln stg will be met with 18.2 mln stg in cash and the issue of one million ordinary Carlton shares, it said. Central showed pretax profits up by 57 pct to 18.8 mln stg for the year ended 30 September 1986.