TORONTO – Keying off an internal CableLabs research paper, a Wall Street Journal report said yesterday that cable operators may need to spend billions on more rounds of network upgrades. The newspaper story (subscription required) quoted the leaked document from Cable Television Laboratories – the cable industry's R&D and specifications arm – saying that broadband video growth at places such as Google and YouTube, coupled with the multibillion-dollar spend by Verizon to get fibre to the premises and roll out digital television, will require CableLabs members to dig into their wallets for yet another rebuild. The story also printed grouchy-sounding...