Damn that's annoying. They are actually quite good in their package, I shall list the options from memory (ignoring what doesn't apply or is just plain out of mind).

Sky - Broadband, phone, TV. Requires you to pay a Murdoch (hard pill to swallow for one parent)

Virgin - Cable (internet on different unshared fiber), phone, tv. Requires acceptance of this article. (Tbh not too fussed)

BT - Broadband and calls. TV package is an expensive joke. Call centre is shit/Indian (quality of the line and training, not racism)

Talktalk - Broadband and calls. Even worse call centers. My parents are afraid to leave them now...

Anyway, I believe I'm wrong somewhere, I wish I was wrong in more places (everything negative).