It’s the middle chapter of the Terra-Man story, by Bates, Swan and Blaisdel in Action 469 (March 1977).
The story picks up immediately after the end of the previous issue, with Superman carting Terra-Man away. But we see that Superman releases the bad guy, as Terr-Man has planted a number of bombs throughout the city, using that for leverage against the hero. But Superman’s actions are spotted by others as well.
When news spreads the next day that Superman released Terra-Man, many turn against him. Gregory Reed, the actor who plays him, finds out that his show has been cancelled in the backlash.
The following night, the city finds itself sealed off by an energy barrier, and the people glued to their televisions again when Terra-Man’s show comes on. Superman and Terra-Man get back into the positions from the end of the previous “show,” and continue their fight.
The fight is entertaining, you have to give it that, although it’s intercut with Lois, Jimmy, Gregory Reed, Morgan Edge and even Steve Lombard, watching in dismay.
This time Terra-Man wins, shooting Superman, and ever burying him at the end of the issue.
The story concludes in the next issue.