A class and sensible constructor for a TV, channel, and show.

TV_objects.rb

class TV
  def initialize(model = nil, size = nil, resolution = nil)
    if model.nil?
      @model = ["Sony", "LG", "Samsung", "Vizio"].sample
    else
      @model = model
    end

    if size.nil?
      @size = [19, 28, 30, 32, 36, 38, 42, 52].sample
    else
      @size = size
    end

    if resolution.nil?
      @resolution = ["420p", "720p", "1080p"].sample
    else
      @resolution = resolution
    end

    puts "I am a TV! I am a #{@size}\" #{@model} TV, with a #{@resolution} display!"
  end
end



class TV_Channel
  def initialize(number = nil, name = nil)
    if number.nil?
      @number = [2, 4, 5, 11, 25, 38].sample
    else
      @number = number
    end

    if name.nil?
      @name = ["WGBH", "CBS", "ABC", "NBC", "FOX"].sample
    else
      @name = name
    end

    puts "I am channel #{@number} - #{@name}!"
  end
end



class TV_Show
  def initialize(name = nil, showtime = nil, rating = nil, channel = nil)
    if name.nil?
      @name = ["Oprah", "Two Guys, a Girl, and a Pizza Place", "Friends", "Sienfeld", "Married with Children", "Silicon Valley"].sample
    else
      @name = name
    end

    if showtime.nil?
      @showtime = ["5 am", "11 am", "2 pm", "6 pm", "11 pm"].sample
    else
      @showtime = showtime
    end

    if rating.nil?
      @rating = ["TV-Y","TV-Y7","TV-G","TV-PG","TV-14","TV-MA"].sample
    else
      @rating = rating
    end

    if channel.nil?
      @channel = [2, 4, 5, 11, 25, 38].sample
    else
      @channel = channel
    end

    puts "#{@name} - Broadcasting at #{@showtime}, on channel #{@channel}, rated #{@rating}!"
  end
end