A quick Google search for 'remington steele episode chloroform' reveals this:http://www.geocities.ws/chlorodatabase/television3.html
Sounds like a crazy (literally) episode!
TITLE: Remington Steele (1984 US TV)
Episode: 46 – “Lofty Steele”
Actress: Stephanie Zimbalist
My Rating: 2 1/2 stars
Description: Someone is trying to run Laura (Stephanie Zimbalist) out of her loft apartment. Remington Steele wants to stay and protect her, but she pushes him out. After he leaves, she removes her earrings and is walking toward her sofa when she is grabbed from behind, a folded white towel held over her nose and mouth. She’s lifted off the ground, kicking a few times and clawing back at the man’s face, but she passes out after about eight seconds and is lowered forward and thrust onto the sofa face down. When next we see her, she’s in an insane asylum.