Channel 44

[J.E.Schuyler]

WGBX started testing 44.5 in HD (in addition to the four SD channels) with color bars on or about May 4.  
Programming debuted on or about June 19, with 44.5 running HD simulcasts of 44.1.
By June 27, the HD programming had moved to 44.1 and 44.5 disappeared.
As of today, the line-up is the same: HD on 44.1, SD subchannels 44.2-3-4.
The temporary, experimental 44.5 is no longer on the air.

(I have OTA reception through a converter box into an old analog set.)