I have my HR24 set that when a show isn't in HD it will display the pillar box in black on the sides. This morning when I went to put Baby First TV on it was in full screen. I first when through all the format options and even played with the menu and it's still full screen. I then went to a few channels I know are only SD but they're displayed normal how I like it. Could it be that either Directv or Baby First decided they wanted the channel in full screen even though it's a SD broadcast? (I'm sure my son could care less but it looks awful.)