My parents still have a 32" Panasonic LCD from the early 2000s as their main TV. The buttons on the remote are worn out, but the TV still works fine. It has HD

My parents still have a 32" Panasonic LCD from the early 2000s as their main TV. The buttons on the remote are worn out, but the TV still works fine. It has HDMI (720p or 1080i) so they have a Roku connected to it so they can watch streaming services. It has previously been supplied by DVD, VHS and terrestrial TV, all of which are now defunt :D I've been wondering whether it's worth opening it up, as the inside must be full of dust.