Comcast reportedly has the makings of its own subscription video service in the works behind closed doors, which is set to launch in the next 12 to 18 months and will be centered around programming from NBCUniversal. Our initial thoughts here are what is NBC-U going to do with an SVoD service, considering that Comcast is a co-owner of third-placed US SVoD service Hulu? NBC-U is currently a key partner for Hulu, so the new service suggests it would have to either adjust its content distribution dealings with Hulu to show older episodes of NBC content, or completely sever the tie, in order to avoid a clash of interests. Faultline Online Reporter has always said that Hulu’s existence runs against…