When a TV show makes its debut, it could run for a few years or more, depending on its ratings. If its first season generates considerable ratings, the show can be renewed for a new season, and more seasons could follow if ratings continue to be good. Otherwise the show would meet the end of its run.
But while shows end their run, some of them aged pretty well. And when I say aged well, they continue to be shown on TV stations occasionally, thus making them classics. Sadly, Roary the Racing Car isn't one of them.
Roary the Racing Car, as the title implies, is a show centering on an anthropomorphic race car. Although the show lasted five seasons, I can't say that it aged well. Why? It generated almost no merchandise, and TV networks seem to be uninterested in rerunning its episodes.This shows Roary won't even come close to being a classic like Thomas the Tank Engine.
As to why it didn't aged well, I can only wonder. Perhaps had they used a child actor to be the title character, things would have been a lot different. But for absurd reasons, they used a tomboy which is so untraditional and insulting to guys. Don't the people behind the show know that Roary is a boy? I guess they actually don't.