In "Stop the Clock!", Bert is trying to have a game of baseball with Bentley. He throws a ball towards him, and what does Bentley do? He sits down at his computer, calculates the precise point the ball's going to land at, and simply places his hand at that point. His calculations are a bit off, however, and the ball hits him on the head instead...before landing in the mitt.
In "The Evergreen Grand Prix", the plot centers around a car race between Bert and one of Cyril's bears. Desperate to win, Cyril orders the pigs and several other bears to employ various tactics in order to stall Bert.
First, Bert gets pulled over by a police officer (actually two of the pigs in a Totem Pole Trench) on a motorcycle. The "officer" intimidates Bert at first, until the pigs both topple over, blowing their cover.
Bert: Hey, you guys aren't cops, you're pigs! (drives off)
Next, the pigs set up a fake railroad crossing. There's no train track, just a boom barrier with a bell in the middle of the road. The pigs "drive" a cardboard cut-out locomotive onto the road, with one of them going so far as to smoke a cigar in order to simulate a working smokestack, coughing in the process. Their plan seems to be working, until a bee startles one of the pigs, leading to the cut-out train falling over. Cyril, who'd been watching the event through binoculars, proceeds to insult the pigs' intelligence, even though they aren't around to hear him.
Cyril: You porkers couldn't pour water out of a boot if the instructions were written on the heel!
After the train incident, some of the bears walk onto the track, wearing duck costumes, flapping their arms and making "quack" noises. The costumes don't even cover their heads, save for the duck bills that are strapped around their mouths. Confused, Bert stops, wondering why the ducks aren't heading north, since it's currently April. Seriously, Bert doesn't seem at all surprised by the fact that bear-sized ducks are running around. A bill falls off one of the bears' faces, and he proceeds to give Bert a guilty grin, quack some more, then blush before Bert drives off.
Afterwards, we see that the bear who had been driving Cyril's car has pulled over and is in the middle of having a picnic by himself at the side of the road, which ultimately costs him the lap.
Bert pulls the visor down on his helmet, but forgets his nose is sticking out of the helmet and crushes it by accident.
In the episode "Easy Money!", Cedric found out a newspaper treasure hunt is a scam from his dad... he'd confiscated the hunt from the pigs, and spent three days in the Endless Echo Caverns following the instructions on it to nowhere!
In "The Evergreen Express":
Cyril: Good thing I don't crack under pressure. [Notices that the train engine is losing its power until he sees that the train is starting to reverse back toward the broken bridge]YEAAAAGH!
In "Surprise Attack", as he's about to start the motorcycle, one of the pigs feels around for the keys while Cyril rolls his eyes in exasperation. Moments later, the pig is filling up the gas tank and Cyril folds his arms impatiently.
Cyril: Somewhere out there is an army that is out to destroy everything I've pillaged, cheated, robbed and connived to build.
Bert chasing Snag around the Sneer Mansion garden to snip off a piece of his fur.
Cyril's half-hearted attempts to improvise around Ralph and Melissa's script. His expressions are hilarious.
Schaeffer and Ralph's victory dance in "The Wrong Stuff!"
After spending the entire episode being suckers for sports, Schaeffer and Ralph are dismayed to find that the pigs' video has been playing on TV for three days straight.
Schaeffer: It's on every channel?
Ralph: [distraught] All three hundred and forty. No hockey, no football, no championship darts! No divisional synchronized swimming finals!
Schaeffer: I don't think this is going to be very good for business, Ralph.
Ralph: [near tears] I think I'm gonna cry, Schaeffer!
In "Opportunity Knocks!", Cedric pretends to read aloud from a medical book, when he's actually reading from a comic book.
Ralph's Death Glare when Cedric is pretending Bert is sick and that the only cure is if Ralph and Melissa stay.
In "The Christmas Raccoons", Ralph, Melissa and Bert are on the roof of Ranger Dan's cabin, and Bert is scared to go down the chimney.
Bert: How do we know there's not a... fire down there?
Melissa: No smoke!
Bert: It could be a small fire...
In "Life in the Fast Lane!", after Bert veers uncontrollably into the Sneer mansion grounds by accident, Cyril calls him a "motorcycle-riding megalomaniacal tree-dwelling terrorist". Later, Bert admits that he can hardly pronounce it, let alone understand it.
In "Trouble Shooter", Cyril and the pigs are trying to avoid the new security system after it's gone haywire. When it has them cornered, Cyril chuckles nervously and says "Umm... peace?" while giving the peace sign. It works as well as one would expect.
As shown above, in "The Sweet Smell of Success" the pigs attempt to convince the gang to sign their rock band over to Cyril to promote his new line of cologne. Their pitch includes a slide-show showing the band touring around the world... as drawn by Pig One.
Not to mention, their grand list of places includes France, India, Egypt, and Cleveland.
