$50/month internet (25 Mbps down, unlimited).
$10/month premier Ooma service (basic is free)
$5/month EPG service for Tablo
I can't make heads or tails of NHL Gamecenter Live vs NHL Center Ice, what is available without a cable subscription, etc. But I'm hoping around $200 for the season to watch Sens games. Since I don't care about MLB, NFL, NBA that's all I need, so add another $17/month. Might be able to get away with less than that, I'll see how it goes.
So $82/month. This gets me better internet, better phone package (not that I'd get much use of it). Right now I'm paying closer to $200.
Of course I get more channels of crap, but the fact that I subscribe to Netflix tells me I'm not finding much to watch on cable.
I can rotate between Netflix, Crave, Amazon Prime, HBO (can I get that without cable?).
In terms of h/w Virgin includes the modem, but not sure if it has the wifi router built in. If not, you can get a decent one for under $100. Tablo is around $350 including a 2Tb drive. Antenna is under $100. So around $550 for everything. Pays for itself in under five months.
Savings first year $386. Savings after that, $936/year.
I'm making some assumptions, of course. Like you have a smart TV or Chromecast. If you plan on using Android TV or Apple TV you already have it.
Tablo is not the only one put there. There are cheaper boxes.