I've managed to locate your account and I can see that there is a known fault recognised regarding a high demand for our service in your area. This type of thing will cause buffering when using certain TiVo® apps (particularly at peak times).
The ticket reference for this fault is F004495325, with a review date of 10/08/2016.
Our networks team are fully aware of this and are working to resolve the fault ASAP.
I am very sorry for any inconvenience caused.
Please let me know if there is anything further that I can do to help,