In 1993, the company YES! Entertainment produced an animatronic talking bear called TV Teddy. He came with special VHS tapes with a hidden audio track. This audio track was placed on the left side of the video frame. A special transmitter box was connected in between the VCR and TV. This transmitter box was able to take the hidden audio from the tapes and transmit it wirelessly to TV Teddy. This allowed him to talk and move, while appearing to interact with the content on the tape.
TV Teddy's voice was provided by Kath Soucie. The tapes usually had live action sections called "Anthony's Attic", starring Douglas Manes. Beyond that, there was usually an pre-existing kid's cartoon. Episodes of the Berenstain Bears and Teenage Mutant Ninja Turtles were brought in for this purpose. Movies such as "Rikki Tikki Tavi" and "A Cricket in Times Square" were also brought in.
Because TV Teddy has no line-level output, I had to record him over a lavaliere mike. Then, I performed noise reduction to remove as much background noise as possible. However, you can still hear the whirring noises from TV Teddy's motors moving his mouth and eyes.
The voiceover starts at around the 37 second mark, where the airplane flies on screen. You can see the barcode change dramatically on the video. I have included two copies of the TV Teddy voiceover. One keeps this delay for accuracy, while the other one removes it for the listener's convenience. The audio was recorded from TV Teddy in a single take in real time, so the delay between different voice clips is accurate.