Make sure to look at the address bar at the top of your browser to double-check that you're at the right site--for example, if you accidentally type "bestbbuy.com" you'll end up at a site that looks similar to Best Buy's, but is decidedly not.
While being able to schedule DVR recordings from your mobile device is nice, an update currently being pushed to some Comcast DVRs is adding the ability for users to check exactly what shows are stored there from an app or web browser.
The facility is equipped with the latest technology: my check-in is processed via an automated kiosk, and my surgeon flips through medical records via a browser.