Facebook is poised to siphon off a large chunk of spending from TV budgets in the next two years: The world’s biggest social service has the potential to generate $3.8 billion in revenue from video advertising by 2017, triple its expected haul this year, according to a Wall Street research firm.Facebook, with 1.39 billion average monthly active users worldwide as of the end of 2014, can boost video ad sales “with only modest cannibalization of other ad revenue sources,” Nomura analyst Anthony DiClemente wrote in a research note Tuesday. Based on the firm’s revised estimates, it raised its target price on the stock from $90 to $96 per share.
