The Marathe/Steeply "samizdat" vocabulary was still unsettled at galley stage…
This is a revision: the same material was reworked in substance between draft and print.
In the galley proofs. The 1995 galley proofs: p. 646 About the samizdat of now (print: "About the Entertainment of now"); p. 658 the director's other son (print: "samizdat's director's other son").
In the published book. Scenes 123 (pp. 638–648) and 127 (pp. 655–662)
Evidence. A single source reports this.
Further notes. The two swaps run in OPPOSITE directions — the Entertainment/samizdat terminology was being balanced, not uniformly replaced, at the final stage. Composition-side texture for how late the book's key vocabulary was still moving.