when it's not, it's the first showing of part 2 of a 2-part miniseries (ACT guide, SBS 2, Sun, 22 Apr 2012).
To be fair, the SBS online guide (which I think IceTV uses as its basis for its guide) also has it incorrectly flagged as a repeat. I searched the SBS Web pages to see if there was a showing of Part 2 earlier in the week, but I found nothing earlier.
The whole series is actually a repeat - it was made in 2002 and screened on SBS in 2005.
Ah, sorry about that. I should have checked last night's entry (which we didn't record from IceTV).