I have an old Sylvania 27TV. The remote is lost. My grandson used the menu button to get Video on the top left of the screen. We now have no TV. How can I get it back?

SOURCE: tune in an older (1996/1997) model Philips tvwithout a remote

Most TVs have features that cannot be accessed w/out remote. Make sure you copy exact model number on TV then go online to seach replacement remotes

SOURCE: old Sylvania model #6420FB lost remote how to switch to av mode

Unless the TV has a front-panel menu button and allows you to switch modes from there, you are out of luck. There are two possibilities. One is to try another replacement remote. If you get a universal remote made by the TV manufacturer (Magnavox), it may have buttons that will work. The other option is to purchase an RF converter, which will cost around $15. This will take the video/audio signals from the game and convert it to a channel 3 or 4 signal you can then tune in on the TV. The picture won't be quite as bright and clear as with direct AV input, but it will do the trick.

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Replace e-prom.

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the code is 0520

SOURCE: RCA TV lost Color

It sounds like your grandson found the "monochrome" setting in the menu on your remote. It may be in the "picture settings", "set-up" or "advanced" setting.