Sgt. Frog Episode 66: Love in the Time of Color T.V.
Episode 66 of 358 of Sgt. Frog, aired July 8, 2005, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Fuyuki and Natsumi have been kidnapped and abducted into space! Giroro leads the Keroro Platoon on a mission to rescue them. And then Natsumi goes on a mysterious "date"... Source: crunchyroll