I decided to hook my antenna up to my HR-20 and everything seemed to go okay but when it got to downloading guide data it froze at 48%, after it sat that way for 10-15 minutes I ended up doing a RBR. Now when for the last few days the guide says my guide data past 6pm 5/16 is "To be announced". Should I be concerned or do a reboot of the box or is this normal? Is there a simple way to trigger guide data download?