When you run a search you can save this in your LISTS.

Each plan comes with a set amount of saved LISTS, what this means is if you want to go back to a search you made in a day/week/month/year you can then run that search again and find new shows that have been published or compare the ones from your previous search with new results.

When you save your LIST you can give it a memorable name and so when you look at your saved searches it makes sense.