When was the first time in Ultraman Tiga called Tiga?

I will mainly talk about the origin of the name "Ultraman Tiga" (using the original Japanese version as a reference, the Mandarin version has no direct reference value. Chiaki Konaka's Tiga novel was given at the beginning of this year The Chinese characters for official characters, I will not use them here due to customary considerations), first of all, the name "Diga", which obviously comes from the land of Diga mentioned in the first episode. Dagu directly used it as the name of the giant, and as for why The place where the Giant Pyramid is located is called the Land of Tiga. It was mentioned at the end of the Tiga ov spin-off "Resurrection of Ancient Titans" released in 2001. You can watch it yourself to get the information. Let's talk about the title "Ultraman" again. In Tiga's 49th episode "Ultra Star", the first-generation Ultraman appeared at the end to help Tiga defeat Yanagaki and then flew into the universe, which shows that Tiga's world view has Other giants of light exist in the M78 nebula (this was learned from the original Ultraman in this episode after he threw Yanagaki into Lake Ryumori and told Eiji Tsuburaya that he came from the M78 nebula). In Episodes 50, 51 and 52 of Tiga, humanity has already encountered the crisis of destruction. The first-generation Ultraman and other giants of light did not come to save the earth. It can be said that to a certain extent, they did not weaken Tiga's protagonist status and did not take over Tiga. Jia's limelight gives Tiga plenty of room to develop. I won't say more about the themes that the scriptwriters want to highlight in these three episodes. (What’s even more frightening is that there is no further information about Tiga Episode 49 in Dynali, so Tiga Episode 49 must be a bit confusing) At the end of Tiga Episode 49, Tetsuo Kaneshiro wrote the first generation under the inspiration of Eiji Tsuburaya’s father. Ultraman's script and the actual shooting at the end of the film, so it can be inferred that Dagu watched the first generation when he was a child, and also remembered the great heroic image of "Ultraman" in his heart. At the end of the second episode of Tiga, everyone Use it when naming giants. Therefore, "Ultraman Tiga" officially became the TPC's unified call sign for this giant of light at the end of the second episode, and it was announced to the public and became known to the public (the opening credits of the third episode of Tiga are on Captain Ma's TV show It shows that at this time, the mass media has spread the title "Ultraman Tiga" to the whole world).