TDT is an acronym that stands for "Terrestrial Digital Television". This term is used to describe the modern method of transmitting television signals through terrestrial means in a digital format. However, there are several synonyms for the term TDT that are commonly used, such as Digital Terrestrial Television (DTT), Freeview, or simply "digital television". These synonyms may vary from region to region, but they all refer to the same concept of transmitting television signals through terrestrial means in a digital format, which is much more efficient and higher quality than the traditional analog signal. As technology continues to evolve, new methods of transmitting television signals may emerge, but TDT and its synonyms are likely to remain an integral part of our daily lives.