Primeval was advertised as being about dinosaurs despite none appearing in the first series. Presumably they thought saying it was about giant centipedes, dodos and flying lizards wouldn't draw in as many viewers.
What if Barney was green, female, Australian, much less obnoxious and actually likeable by people over 6? You'd have Dorothy the Dinosaur, one of the extended cast members of The Wiggles.
Top Gear recently had a car review that, for no apparent reason, incorporated dinosaurs into the usual shots of Clarkson driving the car, including one where he is briefly pursued by a tyrannosaurus. It's actually very well done for a series that doesn't really use special effects very much.
In the Doctor Who serial Invasion of the Dinosaursnote The full title wasn't given until the second part, so to avoid spoiling the surprise, London is under martial law in response to the dinosaurs that have been mysteriously appearing there, brought by a conspiracy, using time travel technology.
Season 7 features an episode titled "Dinosaurs on a Spaceship". Honestly, what more could you ask for?
Torchwood had a chocolate-loving pterosaur as the team pet. Why not?
iCarly. Yeah. The episode where Carly almost moves to Yakima, where Spencer says to the granddad: "These are all the vitamins she needs to take. I only give her the ones shaped like dinosaurs." "...Why?" "...Dinosaurs are cool."
Sliders has two episodes prominently featuring dinosaurs.
Maggie: We just saw dinosaurs and you're rattling on as if nothing happened.
Quinn: Been there, done that and we got the T-shirt.
Tim Haines from The BBC wanted to make a Mockumentary on prehistoric mammals. They went on to produce the highly successful and influential Walking with Dinosaurs because dinosaurs sell better. Then, he got to make the series he originally wanted, Walking with Beasts.