live local internet TV!

Jeez, can I get some live local TV on anything other than a TV set around here? Advertise all you want, I wanted to watch the Seahawks play the Packers today, but we don't have a TV set anymore. We do our viewing on our new iMac or the DVD projector, but sometimes I need to see live TV. Maybe I'm missing something, but I can't see the downside to letting me log in to King 5 and watch the news, live, just like the rest of the city can. Is it bandwidth? Heck, store it and stream it 10 minutes later if you want, I don't care if it's live-live. On the upside, I am forced to leave my lovely home and meet up with "people" in the "outside world" when I need live TV, so I guess you could say it's a community building thing. Eh, I want TV on my computer (without buying a TV converter box or iTV or anything extra).