[This is preliminary documentation and subject to change.]
The CallLetters method gets the call letters associated with the episode. This information corresponds to the S Call Letters field in the Guide database.
HRESULT CallLetters(
BSTR* ppszCallLetters
);
Returns an HRESULT indicating success or failure. If the method succeeds it returns S_OK. Otherwise it returns an error code. For specific error code values see Winerror.h.
Windows NT: Unsupported.
Windows: Requires Windows 98.
Windows CE: Unsupported.
Import Library: User-defined.
Unicode: Yes.