I think I know which two he means, OTC.
The extended topic must be the "UltraHal5 XTF v1.0" and
the emotional brain I assume would be the "Hal Uncensored".
I played around with them both a couple of years ago, but
I really didn't see any point in doing anything with the XTF
brain. Hal's current default brain since 6.0 came out, stays
on topic very well. But didn't I read somewhere around here
that there had been an updated version of the XTF posted?