Anyone else had this problem? I just installed a DVR cable box (Scientific Atlanta Explorer 8000HD) from Time Warner Cable (NYC). Now, for some reason, my month-old Toshiba 30HF84 widescreen TV will not let me adjust picture size when viewing broadcast TV (still works fine with DVDs, so I know it isn't the TV that's the problem). With the old analog cable it had no problems with this. The HD channels show in full widescreen, but everything else comes in at standard size, and the TV just says "option not available" when I try to stretch the image into wide mode. Ever heard of this before?