What to Watch on Wednesday: Rob Lowe and sons are on the search for UFOs

The Lowe Files (10 p.m., A&E) – Rob and sons Matthew (the Duke grad) and John Owen (he’s at Stanford) travel to the UFO hotspot of Phoenix, where they meet alleged alien abductee Travis Walton and a local fulgurite specialist.

Also on tonight . . .

Marlon (9 p.m., NBC) – Marlon struggles to come to terms with his daughter bringing home a boy for the first time.

The Sinner (10 p.m., USA) – Cora tries to recover missing memories with Ambrose’s help.

Greenleaf (10 p.m., OWN) – When Sophia and Zora are excluded from the upcoming debutante Cotillion, Lady Mae sets out to make things right.

Jay Leno’s Garage (10 p.m., CNBC) – Jay is the first customer to get Ford’s new GT and later meets up with newsman Ted Koppel.