Health Where can I watch Gossip Girl all seasons? Where can I watch Gossip Girl all seasons? All six seasons of the original "Gossip Girl" are currently streaming on HBO Max, right alongside its sequel series (which itself is an HBO Max original).Oct 25, 2021 Related Posts:Which streaming service has HBO Max?How much does it cost to add HBO to Hulu?Where can I watch Gossip Girl Netflix?Why won't HBO Max install on my Samsung Smart TV?