TV Japan requires upgrade to X1 box but is "Comcast" internet required too?
Right now I am a non X1 Comcast customer. I used a cablecard in a Tivo. But I have received a notice from Comcast that to receive "International" channels I have to upgrade to an X1 set top box. I subscribe to TV Japan. Channel 330 in San Jose, California. The TV Japan web site confirms this. Looks like "international" channels are moving to IPTV so I need an X1 set top box. But the flyer says X1 and "internet service" is required for the upgrade. It does not say "Comcast" internet service. I have internet service through ATT Uverse right now. When I called Comcast upgrade line that operator said X1 and Comcast internet service is required for the equipment upgrade. I can't use the X1 box with another internet service, it must be Comcast internet service. She switched me to the loyalty rep and he also said the new X1 set top box required Comcast internet service and it would not work with ATT Uverse internet service. Is that true? Do the latest X1 boxes only deliver IPTV channels when connected to Comcast internet service?