A:Answer When I first got the TV, Xfinity Steam worked great. Then Xfinity forced a password change and when I had to re-sign in, the authorize process said I didn't have Watch TV thru Xfinity. Went through multiple levels of useless help at Xfinity because the agents don't have Insignia listed as a brand that works with it so they don't have a script. They sent me to Insignia (which means Best Buy). They had me install updates (Settings, About, Check for Updates). I had to do 2 sets of software installs. Short answer is yes Xfinity Stream works with this TV. Longer answer is that Xfinity support is useless for this TV and it's dumb that software updates are automatically processed on the TV since it's connected to a wireless network.