Can I ask where you live, and how much you pay? In the bay area internet only is marginally cheaper than any bundle. $99 for TV + 25mbps and between $66 for just the 25mbps. Teaser rates are $59 for the bundle, $29 for internet.
I live in Kirkland (a suburb of Seattle). Paying Comcast $50/month for "Blast Plus" which is 50 mbps + TV, while it's ~$69 for just 50mbps internet. Both are "promo rates" (aka call the retention dpt. once they run out and you'll get them for another year).
$69 for internet is the full price, not the promo teaser rate. The promo rate is $34 (see linked image). I don't know if you can get the promo rate if you aren't a new customer though.
Kirkland resident here, too. Have you looked into Frontier FiOS? We pay $40/month for Internet, non-promo and no TV. (I don't think they've laid fiber optic to every neighborhood in the city yet.)
