Regent's College is a private college and, as such, its degrees are likely to be regarded by UK media professionals as totally worthless.
De Montfort University, however, is the successor to Leicester Polytechnic, with a much higher academic standing. Even so, I can't think of any reason (other than personal accomplishment) why anyone would seek a degree in scriptwriting. No commissioning editor is going to take the slightest bit of notice of the letters after a writer's name. It's the quality of the writing that counts and I can't think of any great scriptwriters (whether they be Peter Tinniswood, Galton & Simpson, Perry & Croft, Alan Ayckbourn or anyone else) who has ever bothered to seek an academic qualification in their craft.
Chris