Star Wars, analog music, pinballs, and AT&T [Doonesbury]

May 20, 1979 - Star Wars
TV to empty room: "It is twelve o'clock, Earth time. May the force be with you."

June 14, 1979 - Audio cassette
Sheila to Duane, in reference to practicing her California-speak:
"I've been working with cassettes."

June 22-23, 1979 - John Denver
Jim Andrews to Duke, upon visiting Duke's mansion:
"Jim: Duke! You've got John Denver in your backyard!
Duke: I'd like to explan. See, both the dobermans are at the vet's...
John Denver (singing): Take me hoome, country road..
Jim: I can't believe it! John Denver!
Duke: I hate to waste a good silver-tip, but this is an emergency..
John Denver (singing): West Virginiaa..
[BLAM!]
John Denver: Darn it all, Duke! Cut that out!
Jim: What a shot!
Duke (thinking): Oh, hell!
Jim: Clean through the guitar neck!
Duke (thinking): The darn sight must be off!"

June 24, 1979 - Pinball machine
Brenner on the phone with Zonker, unable to find Duke anywhere in the mansion:
"Brenner: He's due in this afternoon from Washington, man. And when he sees this mess, he's going to have my HIDE!
Zonker: No, he's not, Brenner. Listen, go down to the rec room and look under the pinball machine.
[Last frame]
Brenner: Found him. He must have got in last night.
Zonker: Right. So it's not your responsibility, okay ?"

July 8, 1979 - AT&T Slogan
Phone to empty room:
"Riingg! Reach out! Reach out! And TOUCH someone!"