fixup RTL EITFixup to not fake up original air dates

previously shown means "more then some days after the premiere"
original air date is the date of the premiere
the meaning of premiere is vague as it might be
a) the very first time a programme was shown, ever
b) the first time in this country, ever
c) the first time in free tv, ever
d) the first time on this channel, ever
prettify mythbackend --printsched for systems with >9 virtual tuners

With dual/quad DVB devices and multirec its easy to get two digit
card and input ids. Also the service_id is a 16bit integer, so give
it more room, too.