As long as people don't give up on the show it should be safe.
http://insidetv.ew.com/2010/11/22/fox-execs-on-american-idol-fringe-moves-its-the-right-moment/
As for Fox’s other big newsmaking move – shifting Fringe to Fridays - Entertainment President Kevin Reilly said he hopes fans don’t think he’s putting the show out to pasture. ”We are not killing the show. Over the last week, over 45 percent of the audience time-shifted the show. That’s almost half of the dedicated audience watching it on their DVRs. It’s been such a loyal fanbase. I will be really disheartened if the viewer base decides to not watch because it shifted one night. I hope they go with it, and if not they have the option of picking it up on their DVRs. If it does anywhere near what it did on Thursdays, we can glue that show to the schedule because it can be a big win for us.”
http://insidetv.ew.com/2010/11/22/fox-execs-on-american-idol-fringe-moves-its-the-right-moment/
As for Fox’s other big newsmaking move – shifting Fringe to Fridays - Entertainment President Kevin Reilly said he hopes fans don’t think he’s putting the show out to pasture. ”We are not killing the show. Over the last week, over 45 percent of the audience time-shifted the show. That’s almost half of the dedicated audience watching it on their DVRs. It’s been such a loyal fanbase. I will be really disheartened if the viewer base decides to not watch because it shifted one night. I hope they go with it, and if not they have the option of picking it up on their DVRs. If it does anywhere near what it did on Thursdays, we can glue that show to the schedule because it can be a big win for us.”