TV presenter Gethin Jones has had an operation cancelled after testing positive for covid, he confirmed on Morning Live on Tuesday morning.The presenter, 43, has been absent from presenting duties on BBC One’s Morning Live this week, having temporarily been replaced by a number of guest hosts including Strictly star AJ Odudu and Dragons’ Den star Sara Davies. Appearing on the show, Gethin shared how he’d had to cancel ankle surgery after catching covid just days before Christmas.