In 1938, WEVD bought one of its time-sharing partners on 1330, WHAP/WFAB; an FCC examiner recommended the Debs Memorial Fund be allowed to buy the WFAB assets for $85,000 from the Fifth Avenue Broadcasting Corporation, expanding its weekly broadcast hours from 50 to 86. However, two other stations shared the broadcast frequency with WEVD: WHAZ, the radio station of Rensselaer Polytechnic Institute in Troy, New York, which was on-air only on Monday evenings, and WBBR, also of New York, New York, owned by the Watchtower Bible and Tract Society, publishing arm of the religious group Jehovah's Witnesses. From the time of the 1932 broadcasting agreement through the 1970s the Socialist and Yiddish-language WEVD continued to share its station frequency with the religious group, transmitting 86 hours per week while leaving Sundays and early mornings until 8 am to WBBR (sold and changed to WPOW in 1957), and Monday nights to WHAZ. WHAZ was sold to the owners of WPOW in 1967 and turned into a non-interfering, daytime-only station, with WPOW taking the old WHAZ Monday night hours. All of these stations moved from 1300 to 1330 kHz with the coming into force of the North American Regional Broadcasting Agreement on March 29, 1941.