For about a year now, NCTA has been shining a light on the DOCSIS 3.0 specification. Thanks to channel bonding, cable operators will be able to offer wideband service to consumers, with speeds exceeding 100 Mbps downstream. About a month ago, we noted the first deployment of DOCSIS 3.0 in the U.S.

A new article in CED Magazine (“DOCSIS 3.0 arrives“) takes a look at deployments by Videotron and Comcast.

After a year-long trial, [Canadian operator] Videotron is serving up two tiers of the wideband service with speeds of 30 Mbps and 50 Mbps. The slower “Ultimate Speed” costs $64.95 a month while the faster speed checks in at $79.95 a month.

Currently, Videotron’s Ultimate Speed services are available to 112,000 homes in Quebec, with the goal of offering the service to Videotron’s entire footprint of 933,000 homes by next year.

The article notes that, although Videotron didn’t need to do so, some operators may need to use Switched Digital Bandwidth to free up additional DOCSIS channels.

Comcast also picked a system where it wouldn’t need to clear room for more spectrum when it unveiled its first wideband deployment last month in the Minneapolis/St. Paul area with speeds of 50 Mbps on the downstream and 5 Mbps on the upstream.

The service is available to residential customers for $149.95 a month while small to medium-sized businesses can get the increased speeds for $199.95 a month.

Some operators are apparently planning on deployment in 2009.