fetch next episode info from tvrage.com

sample_output.txt

Lie to Me episode 15: 2x02 -- Truth or Consequences is airing on 2009-10-05
Mad Men episode 34: 3x08 -- Souvenir is airing on 2009-10-04
The Big Bang Theory episode 43: 3x03 -- The Gothowitz Deviation is airing on 2009-10-05

tvrage.rb

require 'open-uri'
require 'hpricot'

BASE_URI = 'http://www.tvrage.com/'
NEXT_EPISODE_SELECTOR = '#iconn2 > td:first-child > table > tr + tr > td + td > span'

def show_uri(name)
  "#{BASE_URI}#{name}"
end

%w(Lie_to_Me Mad_Men The_Big_Bang_Theory).each do |show|
  doc = Hpricot(open(show_uri(show)))
  next_episode = doc.at(NEXT_EPISODE_SELECTOR)
  episode_name = next_episode.at('a').inner_html
  date = next_episode.inner_html.match(/\(.+\)/)[0]
  month_name, day, year = date[1..-2].split('/')
  month = Date::ABBR_MONTHNAMES.index(month_name)
  episode_date = Date.civil(year.to_i, month, day.to_i)

  air_date = case episode_date - Date.today
  when 0
    "today"
  when 1
    "tomorrow"
  else
    "on #{episode_date}"
  end
  
  puts "#{show.tr('_', ' ')} episode #{episode_name} is airing #{air_date}"
end