Dvd recorder Liteon LVW-5115ghc+ problem



I am from Canada
I have bought the above mentioned dvd recorder
I have got the following problem:
The output from DVD recorder is widescreen when I watch cable through tv tuner and I do not have a widescreen tv. I have recorded and plays 4:3. I have played dvd’s and the output is 4:3.
Just when I use the tuner or I am in setup screen the output is widescreen
Has anyone got an ideea what should I do?