The police soon arrested the Creeper and his men, leaving the others free to go over to the Partridge Family's house for a sleepover. They returned the hospitality by trusting Shirley Partridge and her family the next morning with the secret of their time travelling van the History Machine, and spent some time describing their adventure with the Jetsons, as they were a family like the Partridges.

"You know kids, I'm still a widow, and I could really use a fresh start. Maybe we all could. And in the future, our songs would be long forgotten. We could reuse all our old material for years before we had to write any more. That would give you kids more time for your homework and hobbies," said Shirley, "Could you take us into the future? Just think how much interest our bank accounts would have accrued by then. We can buy a new house outright."

"It'll be a tight squeeze in the back, even if you don't pack Shaggy and Scooby's food needs in full," said Fred, "But we can do it."

So History Inc took the Partridge Family and their willing manager Reuben Kincaid into the year 2200AD, where they went on to live out the rest of their lives.

Travelling back into the 20th Century, Scooby and the gang arrived in New York just in time for the Annual Comedy All-Stars Show, only to learn that comedians had been disappearing from their rehearsal rooms in the days leading up to the show. The only ones still around to perform on the night were Bud Abbott, Lou Costello, Stan Laurel, Oliver Hardy, and Victor Queen. (Hanna-Barbera made 156 Laurel and Hardy Cartoons and 156 Abbott and Costello Cartoons in the 1960s, with Bud Abbott voicing himself. HB's Laurel and Hardy also met the gang in the New Scooby-Doo Movies 1972 episode "Scooby-Doo meets Laurel and Hardy").

"Hey Laurel and Hardy, it's great to see you again!" said Shaggy, before Velma suddenly elbowed him.

"Have you seen our act before?" asked Oliver Hardy.

"They haven't met us yet from their perspective. That adventure on the ski slopes happens in 1972," said Velma, and went on to explain everything to Laurel and Hardy, "I'd like to look at any celebrity magazines about comedians."

"Fine with us. I hope we're in them," said Stan Laurel.

"Hey Abbott! I don't wanna disappear too!" said Lou Costello.

"Will you stop worrying and get on with our act?" said Bud Abbott, "We still need new material, now that there are fewer comedians to fill up the show."

"So do we," said Hardy, "We'll try writing some poetry for a new angle. Just remember to make it funny, Stanley."

"Say that's a great idea," said Abbott, "We'll write some funny poetry too, Lou. You get started on it right away. Go into the back room where you can concentrate."

In the meantime, Velma was looking through magazines, while Fred and Shaggy and Scooby and So So were patrolling the theatre.

"Hey Abbott!" called a voice.

Fred's group went racing into Abbott and Costello's rehearsal room, to see a masked figure throwing a bag over Costello's head. The four History Inc members crash tackled the assailant, and pulled off his mask, just as Velma and Daphne entered the room, followed immediately by Abbott, Laurel and Hardy.

"Hey Abbott, it's Victor Queen, the other funny guy."

"I'm not funny at all! I have no wish to be!" said Victor.

"I'll say you don't," said Velma, "I found no mention of you in Comedians Equity Magazine or any other celebrity publications. So I slipped out to a genealogy office and researched your ancestry. You are a direct descendant of Queen Victoria, and took the name Victor Queen as an alias which paid homage to her majesty. You tried to destroy the comedy show, because you also inherited her tendency to not be amused."

"If you tell us where you've got the others hidden, we'll tell the police you cooperated," said Fred.

"They're under the stage, right here, all bound and gagged," said Victor.

"Like, how awful. They must be starving," said Shaggy, "Come to think of it, so must we, eh Scooby?"

"Don't worry, the show is fully catered for, and you're the special guests who made it possible for us all to go on after all," said Hardy.

Towards the end of the show, many guests were clamouring for encore performances from Abbott and Costello and Laurel and Hardy.

So Abbott and Costello decided to run with the poetry they had written as additional material, inspired by what History Inc had told them. They introduced their last piece as "A Contemporary Writer in Queen Victoria's Court":

A time traveling poet was seeking a subject for his latest piece.

He gave up on Helen of Troy, since he wouldn't have liked ancient Greece.

He dropped in on old Queen Victoria, deciding he'd nothing to lose,

And asked her permission, but she said, quite firmly, "We are not a muse."

After that, Laurel and Hardy followed suit, with a poem that, although somewhat cryptic and lost on most of the audience, had great appeal to History Inc:

"There was a young Velma, from family of Dinkleys,

Who used the non-dictionary outburst of 'Jinkies',

A lot, while friend Shaggy as frequently said,

'Like, Zoinks' in the speeches that came from his head."

Fred Jones was forever constructing new traps

For villains that history dropped into their laps;

And Daphne would offer the Scooby snacks too,

To motivate help from their dog Scooby-Doo.