History Vault is not listed under History channel - it has it's own main section on the top menu. When you press the blue CatchUp button, with Featured highlighted at the top, press the LEFT ARROW twice and you will be on the History Vault section. Then press the down arrow to access the titles.
Octo-LNB to 2 x 5.2 switches. Explora1 (Prim) & HDPVR 2P (Sec), Samsung 55" UA55F8500 Smart 3D LED TV, HDMI picture & audio via Onkyo TX-NR626 receiver. Explora2 in bedroom, HDMI picture & audio to Samsung 32" UA32F5500 Smart LED TV. 100Mbps M-Web fibre (OpenServe).