If you're lucky enough to have access to Verizon's pure fiber-optic FiOS cable/internet, then you'll want to go to Windows Marketplace and check out their DVR manager.
In an effort to basically kill off TiVO, the cable companies have been rolling out their own digital video recorder (DVR) services. This freeware app basically lets you access and program your DVR remotely via your WinMo phone. A friend tells you about a show you have to watch? Fire up this bad boy, log in and set your DVR to record it.
Having used Verizon's FiOS for a few years (even played with the DVR two years ago), we like their offerings a lot and its nice to see them give some Windows Mobile love.