It turns out our cable service decided to change the number of channels around, after being accustomed the the current numbering for years. Normally I wouldn't mind, but the channels I'm interested in are now scattered to the winds. They used to be grouped together in the guide, and all I had to do was press in the foremost channel number (for example, putting in 42 to also see 43 and 44) in the group, to see them all, three times. Now I have to do it three or four times that many times before I'm done checking all of the channels of interest, because there may only be two channels close enough to each other to see at the same time, now. ;/
*I raise my fist and shake it at Charter Communications!*