How to Hook Up a Comcast Cable Box: 15 Steps (with Pictures) Wikihow.com If your TV is an HDTV, you can use an HDMI cable to connect your Comcast box to your TV; if not, you'll need standard A/V cables (the red, yellow, and white cables) to connect the box to your TV. The cable box should come with A/V cables.
[My original post from 2008, kept for posterity] Last weekend I lost a few hours trying to get closed caption to display with my Comcast DVR connected to my TV with an HDMI cable. I like to temporarily turn on captions when trying to figure out what someone said, or if there's a lot of background noise.
Samsung & LG smart TVs (2016 models and newer) HiSense TVs (models: MTK5658, MTK5659, MSD6586) Apple TV (4th generation) and Apple TV 4K; Fire TV Stick (3rd Gen), Fire TV Stick Lite, Fire TV Stick (2nd Gen), Fire TV Stick 4K, all-new Fire TV Cube, Fire TV Cube (1st Gen), and all Toshiba, Insignia, Element, and Westinghouse Fire TV Edition smart TVs
-Browse the XFINITY On Demand library featuring thousands of TV shows and movies, and launch your selection onto your TV from the app. -Use the Search feature to find TV shows, movies, or channels. -Rename the cable boxes in your home for easier identification. Samsung & LG smart TVs (2016 models and newer) HiSense TVs (models: MTK5658, MTK5659, MSD6586) Apple TV (4th generation) and Apple TV 4K; Fire TV Stick (3rd Gen), Fire TV Stick Lite, Fire TV Stick (2nd Gen), Fire TV Stick 4K, all-new Fire TV Cube, Fire TV Cube (1st Gen), and all Toshiba, Insignia, Element, and Westinghouse Fire TV Edition smart TVs Find the “Cable In” port on your TV box and insert one end of a coax cable. Step 2. Connect the other end of the coax cable to the cable wall outlet. Step 3. Find the “HDMI HD to TV” port on the TV box and insert one end of the HDMI cable. Step 4. Find one HDMI port on your TV and insert the other end of the HDMI cable.