Grab your tissues because This Is Us returns on Tuesday and we're not ready for it.

This Is Us chronicles the Pearson family across the decades: from Jack (Milo Ventimiglia) and Rebecca (Mandy Moore) as young parents in the 1980s to their 37-year-old kids Kevin (Justin Hartley), Kate (Chrissy Metz), and Randall (Sterling K. Brown) searching for love and fulfillment in the present day.

NBC  |  MONDAY 8PM ET

Sheldon and Amy's honeymoon runs aground in New York, while Penny and Leonard discover they are uncomfortably similar to Amy's parents, Mr. and Mrs. Fowler (Teller and Kathy Bates). Also, Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war, on the 12th season premiere of The Big Bang Theory.

CBS  |  MONDAY 8PM ET

Creators Ryan Murphy, Brad Falchuk, and Tim Minear reimagine the procedural drama with 9-1-1, exploring the high-pressure experiences of police officers, firefighters and dispatchers who are thrust into the most frightening, shocking, and heart-stopping situations. These emergency responders must try to balance saving those who are at their most vulnerable with solving the problems in their own lives. The provocative series stars Angela Bassett, Peter Krause, and Golden Globe nominee Jennifer Love Hewitt (“The Client List,” “Ghost Whisperer”).

FOX  |  SUNDAY 8PM ET

This fall something extraordinary will happen - Chicago Med, Fire, and P.D. are all together every Wednesday on NBC.

NBC  |  WEDNESDAYS 8PM ET