Anything that goes thru a satellite is on roughly 7 second delay... It has nothing to do with CNBC. And virtually everything on "cable" goes thru a satellite. Watch any sporting event... And listen to the radio broadcast at the same time... Only the radio is in real-time... unless it's satellite radio.
I understand that, but they didn't just start doing this, right? I've been tuning into CNBC every morning before the opening bell, and I just noticed this delay yesterday. I notice these things because I get psyched up every morning when that bell begins to ring, and I check my clock every morning. (It's a part of my daily routine. ) There wasn't a noticeable difference between the internet clock and the CNBC clock before. Oh well, I never trade based on the "news" from CNBC anyways....
Any delay in Cable is pretty obvious when you watch a HD broadcast next to a regular broadcast. The HD broadcast is always a few seconds ahead of the regular broadcast. I was in a bar once watching a baseball game. It was a long bar, and one side of the bar had a HD TV, the other side had a regular TV. It was funny hearing cheers coming from one side of the bar a few seconds before the other side of the bar knew what had happened.