1) “Grey’s Anatomy” (ABC) and “Law & Order: Special Victims Unit” (NBC) season-openers, both 9 p.m. The two longest-running scripted shows current on TV collide; both are changing with the times. For “SVU,” starting its 22nd year – an investigation faces community distrust of police, And for “Grey’s”, starting its 17th season (the original cast is shown here), the COVID crisis grows. Things get worse when teens accidentally set a fire; that story starts on the “Station 19” season-opener at 8, then spreads into the two-hour “Grey’s” opener.
2) “Supernatural,” 8 p.m., CW. And here is the third-longest-runner among scripted shows. It’s preparing for next week’s finale of this year’s 15th and final season. An epic battle with God continues.
3) “The Unicorn” season-opener, 9:30 p.m., CBS. That first season – starting a year after his wife’s death – was rough on Wade. The season-finale, however, offered a glimmer of hope, when he helped a bright and beautiful woman (Natalie Zea of “Justified,” “The Following” and “The Detour”) rescue a skunk. But he forgot to get her name; now he obsesses, in a fairly good episode.
4) “B Positive,” 8:30 p.m., CBS. After last week’s delightful debut, this second episode is almost as good. Gina (wonderfully played by Annaleigh Ashford) has agree to donate a kidney to Drew, a guy she barely knows. The small catch (she has to abstain from drugs and alcohol for three months) is a huge problem in her chaotic life.
5) “Superstore,” 8 and 8:30 p.m., NBC. After last week’s oddly dreary episode, this show is where it wanted to be: Amy (America Fererra, who left the show) was promoted and left town. Jonah stays, after she rejected the idea of marriage. Now he wants to be floor supervisor. In the second episode (bumping “Connecting”), the corporate website creates trouble.