I just now watched the BACKSTORY featurette on the DOLLS DVD, and they've edited out the portion of the Garland vocal that was originally on the AMC broadcast version (I know because I've still got a tape of the broadcast).
I've seen the "Backstory" featurette on DOLLS (included on the DVD) and it contains the first bit of Garland's "I'll Plant My Own Tree" recording, and in full stereo. But then, frustratingly, narration covers the rest. From the menus shown on DVD Beaver it looks like the complete contents of...