Some great viewing here:
1970 Part 1: http://www.youtube.com/watch?v=1KjZZkkMh8I&feature=plcp
1970 Part 2: http://www.youtube.com/watch?v=5AtWW1t1jLQ&feature=plcp
1970 Part 3: http://www.youtube.com/watch?v=3LaLyTKnTQc&feature=plcp
1970 Part 4: http://www.youtube.com/watch?v=kX6UGBYYEvg&feature=plcp
1970 Part 5: http://www.youtube.com/watch?v=eAqNLIpa-Kg&feature=plcp
1970 Part 6: http://www.youtube.com/watch?v=kxG0sUVQZ0s&feature=plcp
1971 Part 1: http://www.youtube.com/watch?v=J5UFS7FLO3U&feature=plcp
1971 Part 2: http://www.youtube.com/watch?v=2ZwqdNPIynU&feature=plcp
1971 Part 3: http://www.youtube.com/watch?v=avzUCukpwEo&feature=plcp
1971 Part 4: http://www.youtube.com/watch?v=9fJDqL3za0g&feature=plcp
1971 Part 5: http://www.youtube.com/watch?v=tG_1ama7YFY&feature=plcp
1971 Part 6: http://www.youtube.com/watch?v=H7I-n67VmUE&feature=plcp
1972 Part 1: http://www.youtube.com/watch?v=zSx2DjKkI0E&feature=plcp
1972 Part 2: http://www.youtube.com/watch?v=_Fi4P16_XCQ&feature=plcp
1972 Part 3: http://www.youtube.com/watch?v=6TIjcGj4HjY&feature=plcp
1972 Part 4: http://www.youtube.com/watch?v=8ZVOHgO47ro&feature=plcp
1972 Part 5: http://www.youtube.com/watch?v=uFeOVj13Gsw&feature=plcp
1972 Part 6: http://www.youtube.com/watch?v=KdLNm90Cb8w&feature=plcp
1973 Part 1: http://www.youtube.com/watch?v=2HimBkjyX1E&feature=plcp
1973 Part 2: http://www.youtube.com/watch?v=WUrw3KCa2VQ&feature=plcp
1973 Part 3: http://www.youtube.com/watch?v=6HnG7yO9ZMc&feature=plcp
1973 Part 4: http://www.youtube.com/watch?v=LJCIvaBT194&feature=plcp
1973 Part 5: http://www.youtube.com/watch?v=QFT-ONyVmzQ&feature=plcp
1973 Part 6: http://www.youtube.com/watch?v=R_E5wP4hjck&feature=plcp
1974 Part 1: http://www.youtube.com/watch?v=zgIZRWt2SiQ&feature=plcp
1974 Part 2: http://www.youtube.com/watch?v=VDT5TLOd4lc&feature=plcp
1974 Part 3: http://www.youtube.com/watch?v=p5_VND8A2uw&feature=plcp
1974 Part 4: http://www.youtube.com/watch?v=V9oM1N5_ZT4&feature=plcp
1974 Part 5: http://www.youtube.com/watch?v=nDneXmzzHWk&feature=plcp
1974 Part 6: http://www.youtube.com/watch?v=COWJIGR0gT4&feature=plcp
1975 Part 1: http://www.youtube.com/watch?v=XXZLHld_f0o&feature=plcp
1975 Part 2: http://www.youtube.com/watch?v=-PrVwUFaCdM&feature=plcp
1975 Part 3: http://www.youtube.com/watch?v=7zZfVgSqf60&feature=plcp
1975 Part 4: http://www.youtube.com/watch?v=PSbcvZkvl0U&feature=plcp
1975 Part 5: http://www.youtube.com/watch?v=ArQ6r5g1kqM&feature=plcp
1975 Part 6: http://www.youtube.com/watch?v=6wKKwkOj-DA&feature=plcp
1976 Part 1: http://www.youtube.com/watch?v=kn9nj2syVOc&feature=plcp
1976 Part 2: http://www.youtube.com/watch?v=Yfo2PHYDDvg&feature=plcp
1976 Part 3: http://www.youtube.com/watch?v=Yh17RZKrSKI&feature=plcp
1976 Part 4: http://www.youtube.com/watch?v=qGXs7Cw20T4&feature=plcp
1976 Part 5: http://www.youtube.com/watch?v=ZNk4D337hmo&feature=plcp
1976 Part 6: http://www.youtube.com/watch?v=m9qedfpad-s&feature=plcp
1977 Part 1: http://www.youtube.com/watch?v=KUPo1q0ZWbI&feature=plcp
1977 Part 2: http://www.youtube.com/watch?v=35JoUXC4yOo&feature=plcp
1977 Part 3: http://www.youtube.com/watch?v=dtZWA0kuTcc&feature=plcp
1977 Part 4: http://www.youtube.com/watch?v=VyHzmMD_iJw&feature=plcp
1977 Part 5: http://www.youtube.com/watch?v=KPwOji_ufrI&feature=plcp
1977 Part 6: http://www.youtube.com/watch?v=8CQSMbBjpt8&feature=plcp
1978 Part 1: http://www.youtube.com/watch?v=2hweiWB7M-0&feature=plcp
1978 Part 2: http://www.youtube.com/watch?v=kjjdUyRne3A&feature=plcp
1978 Part 3: http://www.youtube.com/watch?v=mL3N98JONAU&feature=plcp
1978 Part 4: http://www.youtube.com/watch?v=uYA3hrpRd0I&feature=plcp
1978 Part 5: http://www.youtube.com/watch?v=AXtuf_4DqZQ&feature=plcp
1978 Part 6: http://www.youtube.com/watch?v=d45CtXzAQ5U&feature=plcp
1979 Part 1: http://www.youtube.com/watch?v=BqaieuYekZA&feature=plcp
1979 Part 2: http://www.youtube.com/watch?v=hNT2ee4xnQM&feature=plcp
1979 Part 3: http://www.youtube.com/watch?v=WJonl7rt4kM&feature=plcp
1979 Part 4: http://www.youtube.com/watch?v=x5fq5L_SGTs&feature=plcp
1979 Part 5: http://www.youtube.com/watch?v=_Ei739O8oIY&feature=plcp
1979 Part 6: http://www.youtube.com/watch?v=51Ur8vP_fcI&feature=plcp
