Bulgaria–United States relations to work. Bulgaria became a member of the Warsaw Pact on May 14, 1955. Though no Soviet troops were stationed on Bulgarian soil, in 1968, Zhivkov sent a Bulgarian division to join Polish, Hungarian and Soviet troops to crush a popular uprising in Prague. In 1978, the Bulgarian secret police were implicated in the assassination in London of Georgi Markov, a Bulgarian dissident who was a correspondent for the BBC World Service, Deutsche Welle radio and the U.S. sponsored Radio Free Europe. Markov was assassinated with a poisoned umbrella on September 7, Zhivkov's birthday. The rise of democratic movements across
A Special Sesame Street Christmas A Special Sesame Street Christmas A Special Sesame Street Christmas is a 1978 CBS Christmas special, made the same year as the better-known "Christmas Eve on Sesame Street". The special was first broadcast on Friday, December 8, 1978, at 8 PM ET on CBS, pre-empting "Wonder Woman" that week. Starring Leslie Uggams. The special features only three of the "Sesame Street" Muppets: Oscar the Grouch, Big Bird, and Barkley the dog. Barkley is played by gymnast Toby Towson. The puppet used for the special was different than the one used for the series, making him five feet tall, or higher,