Ryujin
Legend
Oh DC has had a TV presence LONG before that.
1950s - Superman (George Reeve)
1960s - Batman (Adam West)
1970s - Wonder Woman (Linda Carter). And on Sat. Mornings Captain Marvel/Shazam & then Isis as a spin-off.
1980s - a short lived Superboy series.
1990s - The Flash, then Lois & Clark.
2ks - Smallville, Birds of Prey, & of course the current batch - Arrow, Flash, Legends, Supergirl, Constantine, Black Lightning (coming soon), Gotham, & izombie (technically it's a DC/Vertigo title).
And that's not counting DCs animation arm. They've been a continuing presence since the 60s.
Before that even. Leaving aside the radio serials there was a Batman movie serial in 1943, loaded with wartime propaganda.
[video=youtube;lXcHF2-fDS8]https://www.youtube.com/watch?v=lXcHF2-fDS8[/video]