TV shows come and go, but some endure… for no apparent reason. Case in point: The CW's "One Tree Hill
," which inexplicably returns for a ninth (and thankfully final) season this week. (When it premiered, it was on The WB, for Pete's sake!) But "OTH" isn't the only show to hang on way past its expiration date. Here are a few other current shows that have never topped the ratings or won critical acclaim, but found a way to survive just the same.