I'm also not sure you'll find much choice in cheaper pay TV packages - most are well over what you're paying now, and at the cheaper end you'd need to provide your own broadband connection and wifi. Sky used to offer non-broadband TV, but have announced they're backing out of the satellite TV market - you might get that still, but you'd need to speak to Sky, and all the most attractive deals will probably be broadband based.
I agree with nodgrod, that if you don't have and don't want broadband, then you'll need to consider Freeview. If you have a Freeview compatible TV and an aerial, then it'll cost you nothing. If you've been with VM for years, possibly you don't have a digital-compatible TV aerial, or a suitable TV or PVR. If that's the case then there may be some costs to get things setup, at the cheaper end the resultant setup may not be as easy to use as the VM or Sky TV systems and in that situation your lowest cost option might be to stick with the £36 a month.
