In its latest complaints, Texas plaintiff ERR Content IP LLC targets the media casting services of three more defendants, Hisense (2:24-cv-01053); Roku (7:24-cv-00330) in the Western District of Texas; and Spotify (1:24-cv-09530), in the Southern District of New York. The plaintiff here asserts the same patent already in suit in cases filed earlier this fall against Amazon, LG Electronics (LGE), and Comcast, in that order. The patent generally relates to “providing a main content” on a first device (in its complaints, identified as a smartphone), and “extra content” synchronized to the main content on a second device (identified as a television).