I think it would be grossly unfair to say TV talk shows are useless and boring. You could say useless as some of them are just there to improve the popularity of the host.
Some of these talk shows however help us destress. Take Trevor Noah for instance, or Jimmy Kimmel, or Ellen Degeneres. These are all TV talk shows that help us look at the lighter side of life, and probably save so many people from the dark side.
Many of them may not be informative, some may be informative politically, others may just be informative for gossip purposes, but most are not useless and they are definitely not boring!