RCA L37WD22 not picking up analog channels

  Ive had my RCA L37WD22 tv for about 8 months now, and it was working fine up until today.  

 I was watching tv and then I suddenly got the Unusable signal error. I check the connection 

  and everything seems fine so I go looking in the menus and find that on the channel list all  

 i have on there, other than the VGA, HDMI, etc are the channels that have music (there isnt  

 any music now, and Im on basic cable BTW). So I figured I would just do a channel scan and  

 hopefully that would work. It used to pick up around 60 or so analog channels and alot of  

 digital ones (Im not 100% sure on that. It has been 8 months.) and now its not picking up any  

 analog and only 336 digital. The Cable cord was going through a splicer and the other tv  

 hooked up to it was working fine. Ive tried different cords directly into the wall and it still  

 comes up with the same 336 digital channels. Anyone have any idea whats going on?