This issue is not your TV. It is the PS3 and how it identifies a 3D JPEG.
I assume you are playing the JPEPs in the PS3 and sending the signal to the TV via the HDMI.
Well JPEG, MPEG, H.264 AV/C etc are all indications of "compressed" digital video signals. HDMI cables do not carry compressed digital video signals; they carry full bandwidth non-compressed video signals.
It is the job of the source device - in this case the PS3 - to de-compress the signal and then to package that signal according the HDMI specifications before sending this to the TV. Note, the source device is not supposed to automatically package the signal as a type of signal that is not compatible with the TV. The TV already told the source device what it is capable of handling in the TV's EDID. In the HDMI specifications for the signal there is a feature called an "Info Frame". This is a part of the HDMI signal that the source device creates - it is not a part of the original compressed file it is created by the source device. The Info Frame will tell the TV the details about the signal such as resolution of the video, color format of the video, audio details etc. This is so the TV can adjust to the incoming signal.
In HDMI 1.4a specification, Info Frame flags were defined that tells the TV that the incoming signal is 3D, that it is this specific type of 3D such as TnB or SbS or Frame Packing, and what resolution this 3D signal is. These flags are added to the Info Frame by the source device, such as the PS3. If the flag is not there, the TV most likely sees only a 2D signal. Most TV manufacturers are aware that TnB and SbS frame compatible signals are available that the source device (your PS3) may not identify in the Info Frame as a 3D signal so they TV manufacturers give manual setting capabilities. I believe your problem is the PS3 is not adding the 3D TnB flag to the signal. It may also be that the PS3 is not identifying your JPEG as a 3D signal so it cannot add the Info Frame flag.