1) “In the Dark” season-finale, 9 p.m., CW. For the second straight season, “Dark” started slowly and built to a crescendo. Murphy (who is blind) and friends have until midnight to find and return the drugs Ben stashed before his death. Now they collide with Dean (the crooked ex-cop), who also wants the drugs. This has a too-long detour that strains believability, but then wraps things up powerfully … and propels us toward next season. Despite its flaws, “Dark” has subtly gifted actors (especially Brooke Markham and Perry Mattfeld, shown here, as Jess and Murphy) in a gripping story.
2) “Burden of Proof” season-finale, 8 p.m., CW. As Joanna and Billy prepare their court fight with ClearDawn labs, she also tries to prevent Kodie’s children from having a deep trauma. That triggers a breakthrough for Joanna, as she remembers her own trauma.
3) “Blindspot,” 8 and 9 p.m., NBC. Here are two episodes, pushing us toward next week’s series finale. Madeline (the evil FBI boss) and Ivy (her skilled mercenary) have the surviving team members in custody. They’re ready to control the world … unless surprise forces intervene.
4) “Cannonball” debut, 9 p.m., USA. It’s time for some loud summer fun – the sort most of us are missing this year. Contestants try five wild water-park events, while anchors make sometimes-amusing comments. Early stunts – involving steering and throwing – are kind of interesting; later ones simply have people soar and splash. It’s fun enough, at a time when many new shows had to be shelved.
5) “Mom,” 9 and 9:30 p.m., CBS. Now that the so-so 9:30 p.m. shows are gone, Thursdays have a double helping of this terrific one. In tonight’s first rerun, Christy tries to please her demanding boss (Paget Brewster); in the second, she takes Chef Rudy to a court-ordered AA meeting. In both, her mom faces the decisions of a newlywed – including whether to take her husband’s last name.