Many thanks to SRAA contributor, Paul Walker who shares the following recording of Radio Thailand made on December 28, 2020 starting at 0000 UTC in McGrath, Alaska, on 13,750 kHz. Paul notes:

An entire hour including sign on, interval signal/station song and it includes the azimuth change they make at 0030UTC and the abrupt sign off for the 0100 service on 13750 in Thai at another azimuth.