They sell journalism under the NBC brand. Is this a serious question? If CNBC was issuing paid advertisement like that it would be a much, much bigger story than a spike in a small cap retail stock.
Only a small segment during the 247 news station day is actually designated as news. Everything else is news entertainment which has different regulations.
I still don't see what this has to do with the point above, which is that a promoted tweet from CNBC for one of their segments is clearly not a paid advertisement by the guest in the segment.
You don't think it is relevant in a discussion about deceptive paid primetime television marketing, that the company in question has the highest documented rate of deceptive paid primetime marketing?