I have a 32″ Vizio “smart tv” that I love, but it doesn’t pick up a couple of super basic channels, namely NBC and CBS. I know what channels the two stations are supposed to be on (5 and 10, respectively), but if I type the number in, my tv just takes me to whichever existing channel is closest. When I do a channel search, whether it is complete or within the range that I know the channels are supposed to be, it doesn’t find them. It also cannot find them when I try to add them manually. I get my tv via antenna, and every other station comes in clearly. I have tried adjusting the antenna, but all that does is make me lose the channels I do get. I would assume that the signals are too weak because NBC for sure doesn’t have a local affiliate (in Lincoln, NE), but my friend who lives across the street has no problem picking up the signal from another town. Is there any way I can override my tv? I know the channels exist, but my tv just doesn’t seem to recognize them. Thanks!