Time Warner Cable’s TV Everywhere authentication system went live today for customers, who can now access several channels of ESPN on their broadband connection, assuming they can prove they subscribe to a video package that includes ESPN.

Time Warner’s agreement with Disney-ABC, which owns ESPN, made online viewing possible for Time Warner Cable subscribers.  Viewers can authenticate themselves by visiting ESPN’s website and invoking the live video player, which will connect with Time Warner Cable’s MyServices website.  Just log in and Time Warner will send authorization to ESPN to unlock the video streams to watch.  There is no additional charge for this service.

Earlier, there was some confusion over whether broadband-only customers could have access.  A message on ESPN’s website indicates the answer is no — you must be a Time Warner Cable customer with at least Standard Service to get authenticated.

Unfortunately, once logged in and watching, the results were underwhelming, at least for ESPN3.  The picture quality from Stop the Cap!‘s Brighton, N.Y., headquarters was dreadful, even from a Road Runner Turbo account.  A “signal strength meter” barely moved into second position about five minutes after I started watching.

Results were much better for ESPN’s primary channel feed, currently showing a football game between the New York Giants and the Dallas Cowboys.  That managed to peg the meter one position from maximum.  On a 28″ LCD monitor, the picture looked reasonably good, but frankly not as impressive as either Netflix streaming or Hulu.  Pixel problems and other video artifacts were far too common.  But for on-the-go-viewing, the results were adequate.

Commercial breaks were replaced with either ESPN’s logo or, in the case of the football game, short ad spots for NFL gear.  Watching a slowly moving logo for two plus minutes in uncomfortable silence, especially with a group, can be unnerving enough to actually prefer the commercials.

The results for ESPN3, "powered by Time Warner Cable" were unimpressive, with a "signal strength" meter showing just a single bar on our 15/1Mbps Road Runner service.

Things looked better on ESPN's primary network, which managed to peg the signal strength meter to one position below maximum.