The TV Show was Good Morning America in 4 or 5 parts but the interviews with Linda are archived and cost money but I did find this. If you scroll down you'll find Good Morning America transcripts:
Arndt Feared Father
At 1:01 p.m., “I heard a noise then heard and saw Fleet run to the phone in the den. He was crouched and I saw him dial three numbers, hang up the phone, yell ‘we need an ambulance’ and run back to the front of the house.”
She then saw Ramsey carrying his daughter’s body up the stairs from the basement.
“I saw black with thousands of lights and everything that I had noted that morning that stuck out instantly made sense,” Arndt says. “JonBenét was clearly dead and had been dead for a while.
“I leaned down to her face and John leaned down opposite me and his face was just inches from mine. We had a nonverbal exchange that I will never forget and he asked if she was dead and I said yes, she’s dead, and I told him to go back to the room and to dial 911.
“As we looked at each other and I remember — I wore a shoulder holster — tucking my gun right next to me and consciously counting out the 18 bullets.”
When asked why, Arndt said, “Cause I didn’t know if we’d all be alive when people showed up. I knew what happened, I knew what happened to her.”
Vargas: Do you think your fear was well founded?
Arndt: You bet I do. There’s no doubt in my mind.
Vargas: To this day?
Arndt: Never wavered.
Vargas: Do you think he knew what you suspected?
Arndt: I hope he didn’t. I hoped he didn’t.
Vargas: Why?
Arndt: I needed him not to know what I felt.
Vargas: What you suspected?
Arndt: What I believed.
http://hellpainter.tripod.com/jbr/transcripts.htm