I sounds like you are viewing the shows that are available only on the cloud now.
Did you have the settings on the DVR to save your recordings or delete them after a year?
Those shows will stay on the DVR until until you get rid of them. But if you ever had to exchange your box, those shows could not be retreived from the cloud.
Of course -- that is what we are here for! I really like this simple and clear support article to explain Cloud DVR and it's functions/abilities https://comca.st/3jC3Ihy . There is a short video, as well, to walk you through the basics! Please let me know if this article helps you or if you need further assistance.