While Wikipedia provides general information about the BBC World Service and BBC Russian, the specific claim regarding the 80-year history of bypassing jamming and website blocking is not directly corroborated by multiple independent sources in the provided evidence. The evidence confirms the existence of BBC Russian and the BBC World Service, but not the full historical narrative presented.

The claim is supported by Wikipedia entries referencing BBC World Service and BBC News Russian, which establish the BBC's role in broadcasting to Russia. However, the specific date (March 24, 1946) and the precise context of providing an alternative to Soviet propaganda are not independently corroborated by multiple sources in the provided evidence.

While the evidence confirms the BBC World Service's long history and the existence of signal jamming as a historical tactic (implied by the context of the BBC Russian service), the specific detail that jamming became 'standard practice by 1949' is not independently corroborated by multiple sources in the provided evidence.

The claim references a specific 'CIA memo from 1960' detailing what was jammed versus what was not. While the evidence provides context on CIA involvement and Cold War tensions, the specific content of this 1960 memo is not present or corroborated by multiple sources.

Multiple web searches confirm that Khrushchev was removed in 1964. One source mentions the announcement date (October 15, 1964). However, the claim that the BBC reported it *before* it was announced in the Soviet Union is a specific detail that is not independently corroborated by multiple sources.