--- pat.c.old	2009-02-27 10:05:57.000000000 +0100
+++ pat.c	2010-01-16 22:31:23.000000000 +0100
@@ -217,6 +217,11 @@
 	for(pl=g_list_first(current->program);pl;pl=g_list_next(pl)) {
 		pcur=pl->data;
 
+        if (pcur->pid == 0) {
+            logwrite(LOG_ERROR, "pat: Invalid PMT pid 0 for pnr %d", pcur->pnr);
+            continue;
+        }
+
 		/* Do we have a current PAT ? */
 		if (!last) {
 			pmt_pidfrompat(a, pcur->pnr, pcur->pid);