Hello, I'm Shahid.Sorry to hear that you're having trouble with this but I'll do my best to help.
Phil, what TV exactly ask for password ***** what does appear on screen?
Are you trying to run channel setup in TV to scan channels?
You can use master pin code 1276 that will work to run channel scan and you can turn Off Pin Setting option as well in TV menu to turn Off paternal control option.
I hope these info will help. If you have any additional questions, feel free to ask. If you're satisfied, please rate me a 5-star at the top of your page. Thank you.