BenD_H is away at the moment so I hope you don't mind me stepping in.
I have taken a look at the TiVo® box in the office and I'm unable to find this program either, I have even tried to look for it using the search and browse option but there are no programs available for series 1 and 2. How was your brother able to find this, which path was he taking as I'll try to replicate it that way instead.
Thanks for getting back to me, I have now been able to replicate this and it's strange that it's on our older boxes but not on the TiVo®.
I'm going to raise this for you now, hopefully they're able to upload it to the TiVo® platform but it could also be that it shouldn't be on there and that it is due to come off the older boxes too but I will find out.
Thanks for your patience here and as soon as I have an update I'll be in touch.
Just to let you know that this issue has been raised with ticket number F004835785 and we're hoping it's going to be uploaded by the 28th of October. Please let me know if you're still unable to find this series after that date and I'll chase this up for you.