Hello Kent,
- in the overlay is possible to use PGM only for static graphics.
- we do support MOV format in the ProHD it is from version 6.4. please let me know if you need install file for update
please check the link bellow to see the export parameters for supported mov and other formats
http://support.streamstar.com/479994-List-of-supported-file-types-
all the best,
Vlado