So I came here before to search, and couldn't find the answer. I started reading any thread that mentioned HBO, and finally found a solution for our Tivo and Comcast XFinity problem. Several months ago, the clunky "XFInity on Demand" interfacec disappeared off our Tivo Apps menu, even though our season pass for "Last Week Tonight" still recorded. So clearly HBO was still *possible*. With lots of persistence, I found a thread called "The Spite of Comcast: HBO Go" which contained the "super secret handshake" you need to re-activate HBO access on your existing Tivo box. So I'm adding it as a separate thread for easy discovery... 1) Seems to work consistently with the Safari browser (I'd been using Chrome): 2) Open the HBO Go app on our TV, and choose Sign In. It will give you a code on-screen. 3) On your computer/phone, go to hbogo/signintv and entered the code a 4) Choose Xfinity as your provider. 5) It will tell you that that provider does not support HBO Go; hit refresh on the browser. 6) At the bottom of the screen, you should then click on "Choose another provider" 7) Select Xfinity again Now it works. Thanks so much to krkaufman, BigJim, morac and chiguy50 for the encouragement and confirmation.