Just purchased the Vizio SV472XVT and e-mailed Vizio for the discretes which they sent. I have enough knowledge to be dangerous with discretes. My question is should I just get a new remote or is there a simple way to learn them using the MX-500. I also have the the AV 8 producer. Here is the email from Vizio support:

We use NEC protocol with address 04FB for all of our TVs (except the really old ones, like P4)


Key Label Code
CH + 00
CH 01
VOL + 02
VOL 03
DEVICE PWR TOGGLE 07
POWER 08
MUTE 09
MTS 0A
AUDIO 0B
SLEEP 0E
0 10
1 11
2 12
3 13
4 14
5 15
6 16
7 17
8 18
9 19
LAST 1A
INFO 1B
GUIDE 1C
LIST 1D
MUTE ON 20
MUTE OFF 21
PWR OFF 25
PWR ON 2A
CANCEL 2B
SETUP 2C
SKIP REV 2E
INPUT 2F
STOP 30
REPLAY 31
SKIP FWD 32
PLAY 33
REC 34
REW 35
FWD 36
PAUSE 37
PAUSE/STEP 38
CC 39
ZOOM + 40
ZOOM 41
MENU 43
OK 44
UP 45
DOWN 46
LEFT 47
RIGHT 48
EXIT 49
BACK 4A


SEARCH 4B
AV 51
YELLOW (A )

52
BLUE (B) 53
RED(C) 54
GREEN (D)

55
COMP 5A
PIP 60
PIP SIZE 61
PIP INPUT

62
PIPCH-63
PIPCH+ 64
FREEZE 65
SWAP 66
PIP POS 67

5.1 AUDIO 6F
COMP1 71
COMP2 72
COMP3 73
COMP4 74
WIDE 77
HDMI 1 81
HDMI 2 82
HDMI 3 83
HDMI 4 84
HDMI 5 85
HDMI 6 86
HDMI 7 87
HDMI 8 88
RGB 98
AV1 A1
AV2 A2
AV3 A3
AV4 A4
HDMI C6
TV Input D6
MEDIA F0
ENTER FF

You can use the AV Producer 8 with the below EFCs.  See instruction #14 in the on-line manuals to see how to assign these to buttons. Decide from the photographs if you have a 8800 or 8080.  www.hifi-remote.com/manuals/.

Function	EFC
0	117
1	121
2	119
3	123
4	116
5	120
6	118
7	122
8	245
9	249
vol up	183
vol down	187
Audio	059
MTS	055
mute	057
mute OFF	217
mute ON	213
power OFF	216
power ON	087
channel up	181
channel down	185
device power toggle	186
power	053
skip rev	086
cancel	091
enter	018
last	247
comp 2	135
menu	171
guide	244
info	251
OK	164
up arrow	168
list	248
down arrow	166
left arrow	170
right arrow	037
comp 3	139
comp 4	132
HDMI 4	188
wide	138
HDMI 5	192
HDMI 1	193
HDMI 6	190
HDMI 2	191
HDMI 7	194
HDMI 3	195
RGB	253
AV 1	225
sleep	054
pip	197
pip size	201
pip input	199
pip ch -	203
pip ch +	196
pip swap	198
pip pos	202
play	155
pause	154
rewind	152
skip fwd	151
stop	149
replay	153
record	148
fwd	150
pause/step	021
CC	025
zoom +	165
zoom -	169
exit	041
back	039
search	043
AV	105
yellow (A)	103
blue (B)	107
red (C)	100
green (D)	104
comp	231
setup	084
input	090
5.1 audio	074
comp 1	137
pip freeze	200
HDMI 8	061
AV 2	223
AV 3	227
AV 4	220
HDMI	174
TV Input	110
media	141

Thanks for the quick response...I have the old 8080 and tried the magic key or setup to try the codes before they are programmed.None of the codes worked I tried several vol up down,input and all the power on off.

I should have pointed out that you'll need to first assign setup code TV 0178 to the TV device button.

Once you have 0178 assigned, then buttons like Vol+/- and power toggle should work directly. Then you can check your testing procedure by entering EFC 183 for Vol+.

UEI code tv 178 matches URC tv code 113 in the mx-500, a goldstar tv code.

This worked perfect....really appreciate the help!!!