Actually Philips has been quite undecided what AV inputs go where and the following is an abreviated list from a ccf file at
www.pronto.philips.com it's for Pronto's but presumably the official Philips commands.
Also I understand on many newer Philips displays, the inputs will switch to what video source has just turned on. So you may want to experiment with that also.
I have listed EFC's and where they say not available, it means you can't get that command in the TV_0054 setup code. You will probably have to do a device upgrade. RC5:3:072 means RC5 protocol:device=3:OBC=72.
DEVICE(0000BF28) "Pixel Plus"
panel "Discrete Power"
EFC=082 RC5:0:061 Discrete OFF
EFC=018 RC5:0:063 Discrete ON
EFC=044 RC5:0:012 Power Toggle
panel "Discrete Inputs"
EFC=178 RC5:0:056 A/V Source Toggle
EFC=Not Available RC5:3:072 Antenna
EFC=Not Available RC5:3:072 AV1 (This is a macro with these four keys)
EFC=037 RC5:3:004
EFC=223 RC5:0:081
EFC=031 RC5:0:087
EFC=069 RC5:3:005 Side AV input
EFC=210 RC5:0:057 AV2
EFC=170 RC5:3:056 AV3
EFC=202 RC5:3:057 AV4
EFC=031 RC5:0:087 ok
panel "Discrete Formatting"
EFC=Not Available RC5:3:080 14:9 Zoom
EFC=099 RC5:0:117 16 x 9 Subtitle
EFC=234 RC5:3:062 16:9 Zoom
EFC=Not Available RC5:3:117 4x3
EFC=074 RC5:3:061 Auto
EFC=Not Available RC5:3:126 Superzoom
EFC=Not Available RC5:3:116 Widescreen
DEVICE(0000BF69) "Projection"
EFC=018 RC5:0:063 Action
EFC=209 RC5:0:033 Chan-
EFC=177 RC5:0:032 Chan+
EFC=012 RC5:0:015 Left "INFO"
EFC=113 RC5:0:034 Right "A/CH"
panel "Discrete Power"
EFC=082 RC5:0:061 Discrete OFF
EFC=018 RC5:0:063 Discrete ON
EFC=044 RC5:0:012 Power Toggle
panel "Discrete Inputs"
EFC=Not Available RC5:3:072 Antenna
EFC=178 RC5:0:056 AV Source Toggle
EFC=037 RC5:3:004 AV1
EFC=170 RC5:3:056 AV2
EFC=202 RC5:3:057 AV3
EFC=106 RC5:3:058 AV4
EFC=Not Available RC5:3:123 AV5
EFC=210 RC5:0:057 CVI
panel "Discrete Fomatting"
EFC=Not Available RC5:3:117 0.16875
EFC=067 RC5:0:116 Auto
EFC=098 RC5:0:125 Expand 4:3
EFC=002 RC5:0:126 Format Toggle
EFC=Not Available RC5:3:125 PANORAMA
EFC=Not Available RC5:3:116 Widescreen
DEVICE(0000BFAA) "E-Box"
panel "E-Box Discrete Power"
EFC=082 RC5:0:061 Discrete OFF
EFC=018 RC5:0:063 Discrete ON
EFC=044 RC5:0:012 Power Toggle
panel "E-Box Discrete Inputs"
EFC=178 RC5:0:056 A/V Source Toggle
EFC=Not Available RC5:3:072 Antenna
EFC=Not Available RC5:3:072 AV1
EFC=210 RC5:0:057 AV2
EFC=170 RC5:3:056 AV3
EFC=202 RC5:3:057 AV4
EFC=106 RC5:3:058 AV5
EFC=069 RC5:3:005 Front AV Inputs
EFC=031 RC5:0:087 ok
panel "E-Box Discrete Formatting"
EFC=Not Available RC5:3:117 0.16875
EFC=Not Available RC5:3:080 14:9 Zoom
EFC=099 RC5:0:117 16 x 9 Subtitle Zoom
EFC=234 RC5:3:062 16:9 Zoom
EFC=074 RC5:3:061 Auto
EFC=Not Available RC5:3:126 Superzoom
EFC=Not Available RC5:3:116 Widescreen
panel "Discrete Plasma Panel"
EFC=037 RC5:3:004 AV1
EFC=210 RC5:0:057 AV2
EFC=170 RC5:3:056 AV3
EFC=002 RC5:0:126 Formatting Toggle
EFC=044 RC5:0:012 Power Toggle
EFC=Not Available RC5:3:123 VGA / DVI Toggle Input