You use the CALL command to run your program on TSO, as follows:

CALL 'JRL.LIB.LOAD(PROGRAM1)'

If you omit the descriptive qualifier (LOAD) and the member name (PROGRAM1), the system assumes LOAD and TEMPNAME. If your program module is in the data set JRL.LIB.LOAD(TEMPNAME), and your TSO userid is JRL, enter:

CALL LIB