By Katie Wilson Fern Britton is reportedly making a big TV comeback after winning over the public on Celebrity Big Brother. The 66-year-old, who used to host This Morning in the noughties, returned to the limelight last month after several years away from the cameras. And now she is said to want to become a regular fixture on screen again in what has been billed as her “ultimate revenge” on former pal Phillip Schofield. It comes after the pair famously fell out while they were presenting This Morning together, leaving Fern to quit the ITV show in 2009 following rumours Phil was getting paid £2…