So 3 simultaneous TV users, 45-60 mbit good enough, purchase plan accordingly. U got a gamer kid in the house he may starts complaining but that's your problem.
By experience I say if u want to make a significant cut, u have to be willing to cut something cold turkey, or maybe not. For example, I thought I NEEDED CNN, but then I found out they pretty much broadcast the same news as everybody else's. Antenna broadcast (free) and YouTube (free again) more than cover it for me. QVC, don't they antenna? I pickup at least 1 shopping channel in my area. Antennaweb.org should tell you.
As ^he says, cable providers are tricky, they already know what your alternatives are and charge you accordingly. Only way to beat them is, lifestyle change. These days besides Antenna broadcast, I find YouTube have more than enough entertaining (free) channels.