Primetel is a very good deal, you get TV, Broadband and telephone calls all in one package and its cheaper that Cyta. I don't have it, they don't do it in my area, but I know someone who does and he says its really good value for money.
First you have to make sure you have a choice. Primetel coverage is very limited. I stayed with I-choice because I don't like signing yearly contracts which is what you have to do with Primetel. But of course I didn't go with the crappy Netrunner service of Cytanet!