the position of Chief Engineer. Klingon issues continued to be explored in episodes such as "A Matter of Honor" and "The Emissary", which introduced Worf's former lover K'Ehleyr. Five second-season episodes were nominated for six Emmy Awards, and "Q Who" won for Outstanding Sound Editing for a Series and Outstanding Sound Mixing for a Drama Series. The season ran from 1988 to 1989. Season 2 marked the addition of the "Ten Forward" set at Paramount, located at Stage 8 at the studios. The set was designed by Herman Zimmerman, and in the show was a place for the crew to relax, hang out together, and eat or have drinks. Inside, it featured a bar looking out on large windows, and outside it featured a star field, or with use of green-screen special effects, other scenes. Season 3 (1989–1990) Before the production of the third season in the summer of 1989, some personnel changes were made. Head writer Maurice Hurley was let go and Michael Piller took over for the rest of the series. Creator and executive producer Gene Roddenberry took less of an active role due to his declining health. Roddenberry gave Piller and Berman the executive producer jobs, and they remained in that position for the rest of the series' run, with Berman overseeing the production as a whole and Piller being in charge of the creative direction of the show and the writing room. McFadden returned to the cast as Doctor Crusher, replacing Muldaur, who had remained a guest star throughout the second season. An additional change was the inclusion of the fanfare that was added to the opening credits of the second season, to the end of the closing credits. Ronald D. Moore joined the show after submitting a spec script that became "The Bonding". He became the franchise's "Klingon guru", meaning that he wrote most TNG episodes dealing with the Klingon Empire (though he wrote some Romulan stories, as well, such as "The Defector"). Writer/producer Ira Steven Behr also joined the show in its third season. Though his tenure with TNG lasted only one year, he later went on to be a writer and showrunner of spin-off series Star Trek: Deep Space Nine. Six third-season episodes were nominated for eight Emmys. "Yesterday's Enterprise" won for Outstanding Sound Editing for a Series and "Sins of the Father" won for Best Art Direction for a Series. After a