H.265 Standard 50% More Efficient Than H.264 > Let see if ATT Old Fashion Telephone lines can handle 4K TV,

If you just want to say "phone line" without specifying UVerse, Bell Canada is doing 50/10 on a regular phone line (VDSL2 with FTTN), and line-level bonding should be able to break the 100 Mbps mark over a single 4-wire phone connection.