Comrade Ploof, I'm very glad you brought up and linked to the 'Morning Post' program; it's a pretty good example of the Western cultural influences on the Soviet Union at that time, in terms of music, clothing styles, style of interaction with the audience, etc. In terms of content, I would say that in 1986 what went into that program had little to do with Gorbachev. Western music had been appearing on that show at least since the early 80s, and had permeated Soviet youth culture since at least the late 60s.
Anyway, there's a bit of sneaky manipulation of the so-called list by whoever published it on that site; first off, it was created the Nikolayev Oblast Committee in Soviet Ukraine, not by national directive. Yurchak himself is a bit ambiguous in his discussion of the list, seeming to extrapolate from one concrete document in the Nikolayev Oblast to a national initiative, but nowhere does he say that this is a ‘national list of music banned on radio stations’.
Yurchak makes a couple interesting points about the sporadic attempts to contain and control Western music. First off, he points out that such a strange and incomplete list makes it seem that other artists, or other albums by the same artists, are acceptable. Secondly, and more importantly in my view, he notes that conservative Soviet forces in the Komsomol and elsewhere "did not recognize the fact that Western cultural influences in the Soviet context were enabled by the contradictions of the state's cultural policy, that they were part and parcel of socialist realities, and that "bourgeois" aesthetics could acquire specific meanings in the Soviet content and did not necessarily have to contradict the values and realities of socialism. The critique read the symbols of bourgeois mass culture literally, failing to consider the complex translation and appropriation of that culture by Soviet youth in ways that were substantially different from that literal reading."
Edit: Just for the fun of it: for anyone who would like to see an unauthorized rendition of the theme from Rocky by some guys riding around the streets of Moscow in a bus in 1985:
http://youtu.be/-whCcV454xI?t=2m32s Ignoring international copyright laws on national television; that's how the Soviets rolled back then.