FAQ: Comcast RNG equipment Comcast Cable TV. Over the last few years Comcast has started to label their boxes as different numeric levels of "RNG" (Residential. Civil Engineering Applications for the use of consulting engineers, structural designers, and architects. Like TiVo before it, the cable-box digital video recorder (DVR) is a gadget that's easy to love-until you realize that last week's game has been erased to. I'm having problems tuning in several channels with my COMCAST digital "adapter" going into analog TVs. This appears to be a relatively new problem with specific. 119 thoughts on “Fire TV Hack: How to stream Comcast Xfinity cable in your FireTV?” Comments navigation. This isn't a real hack but will improve your TV picture. Hi, First let me say thank you for your article! I have been researching /debating purchasing my own cable box vs. renting one from comcast and your article does a. this you need to order if you go to a high channle such as 46 and there is no video nor audio. it would say comcast and a number will appear.(thats how. Open Up Your Cable Box As mysterious black boxes go, the cable box is a doozy. It runs an unidentified, proprietary operating system, contains hidden menus with codes. By following these steps, you can reprogram a button on your silver Comcast television remote control (made by Motorola), so when you press the button, it skips.