Yes, you can hide all the shows in no time.
Follow the guide below to delete an episode or movie from Hulu:
Step 1- Log into your Hulu.com account.
Step 2- Select the name of the profile, and enter the viewing arena.
Step 3- Hit the history of the viewing list in the top corner of the screen.
Step 4- Choose the video you want to delete.
Step 5- To remove a video, click the garbage bin symbol next to it.
Step 6- or else, click the Erase all movies option located above the Last Viewed column.
Step 7- It will erase your complete viewing history.