Fandango screen takes over my Roku TV screen

Hi, I just had this problem in 2024. [TLDR, needed to clean the remote] Every time I turned on my Roku TV it would go to Fandango and I could not get out of the page. Even the power button was useless. The buttons seemed to register (the screen would glitch, and I would hear the button press feedback from the speakers) but eventually the TV refused to turn on again after multiple unpluggings. I opened up the remote and realized the batteries had corroded. Opened up the remote more to expose the processing board and saw the battery acid had gotten on the electronics. I washed the board with water and a q tip, let it dry, put it all back together, replaced the batteries, and it worked like a charm.