I read an interview with Denise and she said she recognized her right away, and she's the one who told Penner.
here it is
"I knew who she was from the minute I saw her," Stapley says. "Come on, Family Ties, Facts of Life, I loved that stuff! I knew who she was from day one. I talked to her about it during the mud ball challenge when she was pinning me in the mud for hours. I asked if everyone knew who she was and she said no and she wanted to play as long as she could as Lisa. I was thinking strategically that I might need her down the line and for me to out her would ruin that. When I got to Kalabaw I outed her to Penner. He thought he knew her from somewhere or recognized her and then it was confirmed for him."
from: 'Survivor' Winner Denise Stapley Totally Knew Blair from 'Facts of Life' | Hollywood.com
Modified CG since Dec 2011
Growing out super short cut
High porosity, fine, unknown curl type, somewhere in the 2s at the moment
Mostly low poo
Current rotation includes:
Wash: TIGI Hi Def Curls, LUSH curly wurly
Condition: EVOO mixed with any of the following: TIGI Hi Def Curls, Renpure Red, Nature's Gate Jojoba
Stylers: TIGI control freak serum, KCCC, TIGI Foxy Curls Mousse, AIF, BRHG, TIGI Manipulator, Deva Set Up and Above, TIGI Hi Def curl spray