Spectre: Ultra-budget; small panels (24–43"), basic features.
Defunct / Exited
Sylvania, Symphonic, Scott, Sampo — historical US/license brands; no current production.
Buying tip: Verify actual panel manufacturer (Samsung Display, LG Display, BOE, CSOT) and OS (Tizen, webOS, Google TV, Roku, Vidaa) — brand name alone doesn't guarantee specs.