pek chjalapeÑos, bacon,ndles. tomato and avocado. i call it, "the avocado da vinci".eate your om'lart with denny's build your own omelette menu. >>> tonight on a second look the bay bridge. for more than 50 years cars have been driving on both the upper and lower decks of the bridge. but that wasn't always the case. from its opening in 1936 all the way into 1962 only trucks and trains used the lower deck while cars drove in both directions on the upper deck. and those trains belonged to an early transit system that proceeded b.a.r.t. it was called the key system and every day it carried commuters around the east bay and to and from san francisco. back in the 1980s. george watson brought us the story of how we lost the key system. >> reporter: by 1958 it was gone and it died a slow gradual death. the love of automobiles led to the demise of the ferries first then the trains. despite the important role the key system was playing on the bay bridge route. the loss was nothing less than tragic. we had a virtually pollution free system the nucleous of what could have been t