i have the same issue, almost exactly. only difference is the HDMI is completely dead on one TV, and cuts in and out on another tv, but PS3 works fine on both with same cable, plus tried different cables. component is fine as well.
i tried re-flowing the hana a couple of times (just to make sure), but it had no affect. i was thinking of changing A/V ports, but considering the difficulty, and the fact that there is a trade in deal for $29 to get a brand new slim, i think my labour will cost much more than $29, so i'm gonna see if i can do that.