Okay kiddo, so an interstitial program is when something shows up in between other things. Let me give you an example. Say you're watching your favorite show on TV and suddenly, a commercial pops up in between the show. That commercial is an interstitial program because it shows up in between the show you were watching.
Now let's talk about interstitial programs on the internet. Have you ever been on a website and suddenly, an ad pops up in between the content you were looking at? That's also an interstitial program because it shows up in between the content.
In the world of advertising, interstitial programs are just another way for companies to promote their products or services. They're like little interruptions that try to get your attention, but sometimes they can be annoying if they show up too often.
So, that's what an interstitial program is, in a nutshell. It's just something that shows up in between other things, whether it's a commercial on TV or an ad on a website.