Please re LG RC389H combo. How do we change the T...

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The RC389H is only deigned to receive standard TV signals, not digital. If you are routing through a straight cable line you usually can't access anything above 100 if you don't have a digital tuner. Try using a cable/satellite box if you haven't already, this bypasses the requirement for a digital tuner because the cable/satellite box has one of it's own.

The manual is available from LG:
http://www.lg.com/au/tv-audio-video/video/LG-dvd-vcr-combo-RC389H.jsp
click on the support tab and you'll find the manual listed on the right side of the web page (it's done as a frame).

I hope this helps.

Cindy Wells

its here for free, available in pdf format will need adobe acrobat or similar.
http://safemanuals.com/user-guide-instructions-owner-manual/LG/RC389H-_E

please rate :) 

Try holding down the tv power button and keep holding it while you press the channel button until your tv comes in.. It takes a few pushes. Make sure your tv is off first though.

I found the DVD LG DVS-8575N manual in spanish on http://safemanuals.com/user-guide-instructions-owner-manual/LG/DVS-8575N-_S

Procedure:
Press at the same time POWER TV and a code number.

TV - Code number

LG / Goldstar: 1 or 2
Zenith: 1, 3 or 4
Samsung: 6 or 7
Sony: 8 or 9
Hitachi: 4

Manufacturer Codes
LG/Goldstar 1, 2
Zenith 1, 3, 4
Samsung 6, 7
Sony 8, 9
Hitachi 4

That is the whole list from the manual

Code numbers of controllable TVs
If more than one code number is listed, try entering
them one at a time until you find the one that works
with your TV.
Manufacturer Code Number
LG / GoldStar 1 (Default), 2
Zenith 1, 3, 4
Samsung 6, 7
Sony 8, 9
Hitachi 4

let me know the make of your remote control, and may be I will be hable to help.