Editor's note: The air date of these episodes has changed.

WHEN ALEX CATCHES HIS MOTHER IN A COMPROMISING POSITION, PENELOPE DECIDES TO TALK TO HIM ABOUT HUMAN SEXUALITY, ON BACK-TO-BACK EPISODES OF "ONE DAY AT A TIME," MONDAY, OCT. 19

"Boundaries" - When Alex catches his mother in a compromising position, Penelope decides to talk to him about human sexuality while also defending herself against Lydia's old-school judgments, on the first of back-to-back episodes of ONE DAY AT A TIME, Monday, Oct. 19 (9:00-9:30 PM, ET/PT) on the CBS Television Network.

AFTER LYDIA DISCOVERS SOMETHING UNEXPECTED IN THE TRASH, THEIR HALLOWEEN CELEBRATION GOES FROM SPOOKY TO POTENTIALLY LIFE-ALTERING, ON "ONE DAY AT A TIME," MONDAY, OCT. 19

"One Halloween at a Time" - After Lydia discovers something unexpected in the trash, their Halloween celebration goes from spooky to potentially life-altering. Also, Schneider and Avery are determined to win an elaborate costume contest, on the second of back-to-back episodes of ONE DAY AT A TIME, Monday, Oct. 19 (9:30-10:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Justina Machado (Penelope Alvarez)
Todd Grinnell (Schneider)
Isabella Gomez (Elena Alvarez)
Marcel Ruiz (Alex Alvarez)
Stephen Tobolowsky (Dr. Berkowitz)
Rita Moreno (Lydia Riera)

RECURRING CAST for "Boundaries":

Mackenzie Phillips (Pam)

RECURRING CAST for "One Halloween at a Time:

Ed Quinn (Max Ferraro)
Sheridan Pierce (Syd)
India de Beaufort (Avery)
Raquel Justice (Nora)

GUEST CAST for "One Halloween at a Time":

Marla Gibbs (Mrs. Jones)
Reggie Watts (Man)
Jeremy Osario (Melba)

WRITTEN BY ("Boundaries")
: Brigette Munoz-Liebowitz

DIRECTED BY ("Boundaries")
: Phill Lewis

WRITTEN BY ("One Halloween at a Time")
: Vincent Brown

DIRECTED BY ("One Halloween at a Time")
: Phill Lewis