12-17-2021 09:36 PM
12-18-2021 05:58 AM
You can find some troubleshooting documents here: https://www.insigniaproducts.com/pdp/NS-40D420NA18/5712321
About your issue, is it possibly a defective remote?
Click on the support tab on the link above and go to the bottom in the PDF document in the user manual.
Since this is a Best Buy brand you also have the option of taking it to the Geek Squad to learn about your repair options
12-18-2021 03:46 PM
Welcome to our community, cameronfoley.
Our friend hockeycanuckjc offers some good advice.
The kind of behavior you've described can sometimes be the result of a misbehaving remote control. Try this: remove the batteries from the remote, press all of its buttons, then install new batteries. Remarkably, this will often correct most remote control issues.
If the problem persists afterward, I recommend contacting Insignia Support at (877) 467-4289 for assistance troubleshooting your TV in real time.
I hope this helps. Thank you for writing to us.