The
short version of the name "Twoje Linie Kolejowe" (Your Railway Lines) which was previously called "Tanie Linie Kolejowe" (Cheap Railway Lines) until 2011. The trains are operated and owned by the
Polish railway company PKP PLK and are equipped with crappy doors that require you to open them with a handle, not a button. The trains ex. TLK Nida, are usually delayed, because, you know,
Polish railways usually have from minor to major delays. Otherwise, the other division of the company, PKP InterCity, is way better.