i had an eircom rep call to my house for some market research on this about 3 weeks ago. They're looking to have something in place on TV by early next year.
Hopefully a bit more competition will bring prices down but I wont hold my breath (e.g. the eu makes the premier lg split their football packages and not give all to sky....so you now have to have sky at 33e pm, setanta at 15e pm and espn at 10e pm (with upc) to see the games....and all this without sky lowering their price in the first place!!!)
But if eircom force people to take a landline in order to get TV, then it's doomed to fail I reckon.
BT went into TV years ago, I could never understand why eircom never followed as the landline business is dying