What model is your daughters TiVo?
I believe 9.4 is only for TiVoHD and S3 models. If she has an S2 then 9.3 is the most up to date version number. YouTube cannot be played on S2 units due to hardware limitations.
Sony S2, SVR-3000, lifetime (11/02)-160GB drive upgraded 11/04 (limited to 137GB)
TiVo S2, 540 unit, lifetime (7/05)-250GB drive upgraded 5/06
TiVoHD, lifetime (10/09)-1TB drive upgraded 5/10