It did not come with the remote or any other accessories besides the TV, so if there is any way to pair an iPhone/Pixel as a remote that would also be good.
Infrared remote control sequences are often shared by multiple models, sometimes even across multiple brands. If you can't find an exact replacement on ebay, it might be worth trying a remote from a different model released within a few years of this one.
Also, remote codes are often captured for various TVs and preserved as config data for use with projects like LIRC. Someone out there might have the data for this model. Some universal remote controls will even have the codes for popular TV brands pre-programmed into them.