VIZIO Forge TV Superbowl ad. Starting the race for Internet TVs and slow death of cable channels

If a TV like this has support for Netflix, Hulu, YouTube or other existing online Video delivery services where I can get my favorite movies on demand (in the case of netflix for a flat fee and I can stream all I want from their catalog) why the hell would I need to watch TV on cable channels and with so many ads? you almost feel stupid for paying the cable company after they make you watch so many ads, in the internet world usually if you pay for something you never expect an ad, with such a high CPM on TV ads, why the hell do we pay for cable????