Subscribers of Charter Communications ‘ higher-end Spectrum TV plans now have access to Warner Bros. Discovery’s Discovery+ for no extra charge. Of course, much of the content on Discovery+ (but not all) is already available through WBD’s HBO Max, which also is currently available to the same Spectrum TV customers. For example, Discovery+ includes 63 seasons of Food Network food-competition series “Chopped,” while HBO Max currently has just 10 episodes from the most recent season. Discovery+ offers a lineup of programming from networks including HGTV, Food Network, TLC, Investigation Discovery and Animal Planet.…