Only issue I have with DTN is live broadcasts are slightly delayed (15-20 seconds) and occasionally while watching sports I've gotten a "Did you just see that?" phone call.... and about that time I see it.
It's not quite that bad, but if your stream buffers very much (which rarely happens), at the next commercial I'd change channels and then comeback to refresh the stream. If you're not careful, you can fall behind 30-45 seconds or more and not even realize it.Oh swell, now I'll be that guy that gets touchdown texts from family before I actually see it.