Thanks to Owner-Manuals.com! This manual was exactly what I needed. As Amana was purchased by Maytag and later by Whirlpool, there was no way to receive it from their websites. I was lucky to find this resource.
Great to be able to set channels again, on an old but stoll fine working TV
Text excerpt from page 15 (click to view)
Calendar: Your TV has been designed with a calendar. By pressing MENU button ,and then pressing VOL(-/+) buttons it will bring you to Calendar. You will see the following display on TV screen.
OCT OCT OCT
Calendar
2005 9 14
Follow the procedure below to adjust the Calendar date: 1. Press the CH( +/-) buttons to select the year item, the month item or the date item. 2. Press the VOL(-/+) buttons to change the year, month or day. 3. Press EXIT button to exit the calendar mode.