So I thought it would be useful to have a list of modern TVs or monitors that work (or don't work) with Dreamcast VGA boxes and cables natively, without the use of a VGA-to-??? converter. This will help people that are shopping for a new TV or are troubleshooting a new VGA cable/box and need to know if the TV is the problem. I've started the list off with a couple I've tested personally. Please let me know of any you've tested and what the result was.

LCD TVs
Element ELEFW328 - Working
Haier HL22FB1 - Working
HiSense F40V87US30 - Working
LG 32LD420 - Not Working
LG 32LH20 - Working
Samsung LE26R41B - Working
Samsung LE32S81B - Working
Samsung LN32A330 - Not Working
Samsung LN37A550 - Not Working
Sanyo DP26649 - Not Working
Seiki SC322TI - Not Working
Seiki SE26HQ04 - Not Working
Sharp LC-19SB24U - Working
Sony Bravia KDL-22PX300 - Working
Sony Bravia KDL-32EX400 - Working
Sony Bravia KDL-32D3000 - Working
Sony Bravia KDL-40W5500 - Working
Sony Bravia KLV-S19A10U - Not Working
Sony Bravia KLV-52V550A - Working
Toshiba 50L2200U - Working
Venturer PLV76198 - Working
Vizio E280-B1 - Working

Plasma TVs
Panasonic TH-42PH9UK - Working
Pioneer PDP-V402 - Working
Pioneer Elite PureVision PRO-930HD - Working

LCD Monitors
ASUS MS236H - Working
ASUS VE278Q - Working
BenQ G2320HDB - Working
Philips 40PFL4909/F7 - Working
Samsung SyncMaster 225MW - Working
Samsung SyncMaster 940MW - Working