My Little Pony. That was the show that was left on when Leonard pressed the 'Assimilate' button and sucked himself in.
Just like that, he was rapidly sent thru a wormhole thru reality and ended up on the other side, where he encountered none other than a colorful, pastel-filled world. He got up and saw himself in some, odd body, like a floating ghost almost. Why was he transparent? He looked around saw the rest of this world was so incredibly bright, there were shiny walking horses in the most cutesy of flash-animations roaming about, doing their normal business. Jobs, families, living their lives as any sentient talking horse would. "This isn't, really my kind of thing. I must've hit the assimilate button by accident!" He said looking for the remote. Across a brief field, he saw it glimmer, it's silvery metallic material reflect in a glint into his eye and possibly across endless meadows of twinkle wish wonder where puppydogs roamed.
"I don't really know, where any of this is?" He said scratching his head. Lisa had watched it once, and there was something about, friendship lessons and magical unicorns, and if he recalled some kind of evil demon dragon voiced by Q from Star Trek. It all went over his head, maybe he should just grab his remote and try a different series, he figured. Heading over to the remote, Leonard was approached on the opposite end by a light-orange furred mare. When he bent to pick up what belonged to him, the mare grabbed it in her mouth.
"Lookity here what we found, some kinda crazy contraption! I wonder if Twi'lah will know what it is. Heck, for all we know she might'a built it, aye Big Mac?" Applejack asked her brother. "Yup." He replied, starting their march off.
"Wait a minute, that's mine! Come back with that!" Leonard attempted to tackle the two but ended up, merely falling thru the ground? What was that about? He rose up and levitated, seeing his ghost-like nature. "Cannot you hear me? I said that's mine!" He needed to get that back, it was his only way home! Maybe if he grabbed the remote he wouldn't just phase thru? "Cannot you even see me, I'm right here! HELLO?" Applejack ignored him. No matter how hard he tried, no one was able to respond nor hear him. He was a phantom in this world, with no canonical presence or solidarity.
"This might be my only shot then." He said, dashing for the remote again.