Pictures always turn out way brighter on my computer than on my TV :/
If your TV has multiple HDMI Input slots then You could set up one of the slots to be calibrated exactly to how it is when you upload it. I use one for gaming with more saturation, brightness, and contrast, and then I use one strictly for photomode.
The channel used for photomode is going to look very bland though, thats why I set up a separate input.
Here's what you should do, if you choose to take my advice:
1. take a photo and reset the photomode settings to default(used to be X for FM4 I believe.)
2. Upload to server, and download the picture to your computer
3. Open it up and full view it
4. Go into your TV settings and play with the settings, to get it as close as possible
5. Profit
This would be way easier to do if your computer was close to your TV, or atleast in the same room, obviously. Now anytime you want to take an accurate picture, just switch your HDMI cable into the correct slot.
