Warren offers to sell Goober his portable TV set (approximately 12" screen) for $50. This would be about 50% of its retail value at the time if it was new.
Goober and Warren are caught up watching International Secret Agent F-45 on television. This was at the height of the secret agent era in film, television, and popular music. Opie and Tommy are playing agents with walkie-talkies just a few episodes earlier. The heroes were the ultimate in virility and sophistication, and would be the ideal trigger for Warren's neuroses.
The best musical scores for film and television shows always use specific instruments to reinforce moods and situation's that are happening on screen. Here they use oboes and clarinets for a sense of goofiness or unease, flutes to suggest Warren's dream state, saxophones and muted trumpets to suggest romance, and a concertina to connect Warren's sleepwalking with the European setting of the spy show that triggered his episode.
The head of Warren's bed is set in a recessed part of the wall, with doors on either side, indicating a Murphy Bed. Still popular with studio and garret apartments they conveniently turn a living space into a bedroom and back again.