Watch CNBC's full interview with LightShed Partners' Rich Greenfield

Rich Greenfield, LightShed Partners co-founder, joins CNBC's 'Squawk Box' to react to Warner Bros. Discovery's latest quarterly earnings report and the future of streaming. "I would say one of the major things to watch over the next year is what is TikTok doing on the big screen," Greenfield tells CNBC.