Tanglewood summer since, except for the interval 1942–45 when the Trustees canceled the concerts and summer school due to World War II. The Shed was renovated in 1959 with acoustic designs by BBN Technologies. In 1986 the BSO acquired the adjacent Highwood estate, increasing the property area by about 40%. Seiji Ozawa Hall (1994) was built on this newly expanded property. Leonard Bernstein conducted the Boston Symphony at Tanglewood in August 1990 in what proved to be his very last concert. Deutsche Grammophon released a live recording of the concert on CD. In addition to hosting world-renowned programs of classical, jazz,
Boston Symphony Orchestra Galway, Mahler's Sixth Symphony, the Brahms "Ein deutsches Requiem", and Ravel's complete "Daphnis et Chloé", which won the 2010 Grammy Award for Best Orchestral Performance. In April 2015, the BSO announced a new recording partnership with Deutsche Grammophon that focuses on the music of Dmitri Shostakovich, with Nelsons as conductor. The first recording in the series, of the Tenth Symphony recorded in concert in April 2015, was released on CD in August 2015, and subsequently won the year's Grammy award for Best Orchestral Performance. In the 1974–1975 American television situation comedy "Paul Sand in Friends and Lovers", several cast members