As a result, PlayMakers has added an extra performance of Proof, this Sunday at 8 p.m.; patrons with tickets for canceled shows can exchange them for any show left in the run by calling 962-PLAY. Since Ira David Wood's run of A Christmas Memory begins at TIP on Dec. 20, The Book of Liz must close this Sunday--call 831-6058 for more info. And Burning Coal has added Wednesday shows to their run of Juno which opens tonight and runs Wednesdays-Sundays at Raleigh Little Theatre through Dec. 22. Call 388-0066 for further details. --Byron Woods