Did your Roku TV decide to strong arm you into giving up your rights or lose your FULLY FUNCTIONING WORKING TV? Because mine did.
It doesn't matter if you only use it as a dumb panel for an Apple TV, Fire stick, or just to play your gaming console. You either agree or get bent.
Here you are. Included everything 46"+ because 49" are common and the next category is 52" up where things get rare. Both of these are gigantic and have 4 HDMI ports. Neither have displayport which disqualifies them in my eyes because this kind of shit.
Why would you want speakers though. I mean computer monitors usually come with them but the less said about them the better.
Congratulations on finding a €1500 dumb TV.
Skipping the first couple because they're ultrawide (probably not the best for TV usage) the cheapest one is the GIGABYTE AORUS FO48U. 2xHDMI, 1x DisplayPort, 1xUSB-C, about a thousand euroons. Expensive? Well, it's OLED. So is the equally-priced LG UltraGear OLED 48GQ900-B, Three HDMI plus DisplayPort.
Also they're not dumb TVs they don't come with tuners, a PCIe version will run you about a hundred bucks, plus the rest of your media server. Or something like 20 bucks (seriously) for a receiver, more like 60 if you want a triple-tuner (DVB-C/T2/S2) that runs Linux (double-check that the bootloader is unlocked, though, can't be arsed to). And yes of course they're more expensive they're not cross-financed by showing you ads. Do you want a TV or a billboard?