Telechrome
... that John Logie Baird's Telechrome was the first single-tube color television display, and could also display stereoscopic (3D) images?
... that <a href="./John_Logie_Baird" id="mwBBw" rel="mw:WikiLink" title="John Logie Baird">John Logie Baird</a>'s <b id="mwBB0"><a href="./Telechrome" id="mwBB4" rel="mw:WikiLink" title="Telechrome">Telechrome</a></b> was the first single-tube <a href="./Color_television" id="mwBB8" rel="mw:WikiLink" title="Color television">color television</a> display, and could also display <a href="./Stereoscopy" id="mwBCA" rel="mw:WikiLink" title="Stereoscopy">stereoscopic</a> (3D) images?