Many thought it was not possible, but looks like HDTV over plain vanilla copper, and not fiber is finally beginning to happen. British broadband provider, NTL says it is experimenting with HDTV services over copper lines using the ADSL2+ technologies. The trials of ADSL2+ started in February in hope to provide 18 Mbps downstream Internet access. ADSL2+ runs over the copper wires that accompany NTL’s co-axial cables. NTL had initially sunk copper because it wanted to sell POTS on those lines, but now is finding new use for those lines. This combo solution is known as Siamese in networking lingo, and its pretty unique to NTL. (Here is a link to the presentation, in PDF)