My passion is creating radio serials with separate silent film adaptations. 

No Such Thing

It has to be intriguing to the aliens. 

"Hey Bob, watch this!"

"What's up?"

"These primitive things created a strictly regimented structure called Time. Fairly intelligent, I'll give them that...but twice a year, some of them literally, in a ritual like manner, EAT AN HOUR, and throw it back up 6 months later."

But they don't believe in magic.

They call it "science" here. 

Just keep an eye on them.