Final Project (with LCD, not complete)

#include <LiquidCrystal.h>
LiquidCrystal lcd(12,11,13,10,9,8);

int buttonState1 = 1;
int buttonState2 = 1;
int buttonPin1 = 4;
int buttonPin2 = 6;
int power = 0;
int menuState = 0; //Channel Surf = 1, Channel input = 2, Volume = 3, Power = 4;
int displayState = 0; //Channel Surf = 1, Channel input = 2, Volume = 3, Power = 4;
int CS = 0; //Channel up = 1, Channel down = 2, Exit = 3
int CI = 0; //hundreds = 1, tens = 2, single = 3, Exit = 4
int hundreds = 0;
int tens = 0;
int ones = 0;
int Vol = 0; //Volume up = 1, Volume down = 2, Exit = 3

void setup(){
  Serial.begin(9600);
}

void loop(){
  buttonState1 = digitalRead(buttonPin1);
  buttonState2 = digitalRead(buttonPin2);
  lcd.noAutoscroll();

  if (power == 1){
    //switch through main menu
    if(menuState == 0){
      if(displayState == 1){
        //LCD Displays Channel Surf Menu
        Serial.println("Go to Channel Surf Menu");
        lcd.clear();
        lcd.print("To Channel Surf ");
      }
      if(displayState == 2){
        //LCD Displays Channel Input menu
        Serial.println("Go to Channel Input Menu");
        lcd.clear();
        lcd.print("To Channel Input");
      }
      if(displayState == 3){
        //LCD Displays Volume Menu
        Serial.println("Go to Volume Menu");
        lcd.clear();
        lcd.print("To Volume Menu");
      }
      if(displayState == 4){
        //LCD Displays Power Menu
        Serial.println("Go to Power Menu");
        lcd.clear();
        lcd.print("Turn Off");
      }

      if(buttonState2 == 0){
        displayState = displayState + 1;
        if(displayState == 5){
          displayState = 1;
        }
      }
    }

    //go into the menu (not just display)
    if(buttonState1 == 0){
      menuState = displayState;
    }
    //Channel Surf Menu

    if (menuState == 1){
      delay(100);
      buttonState1 = digitalRead(buttonPin1);
      buttonState2 = digitalRead(buttonPin2);
      Serial.println("In Channel Surf Menu");
      lcd.clear();
      lcd.print("Channel Surf");
      if(buttonState2 == 0){
        CS = CS+1;
        if(CS == 4){
          CS = 1;
        }
        Serial.println(CS);

      }
      if(buttonState1 == 0){
        if(CS == 1){
          //transmit code to switch channel up
          Serial.println("transmit code to switch channel up");
          lcd.setCursor(0,1);
          lcd.print("                ");
          lcd.print("Channel Up");
        }

        if(CS == 2){
          //transmit code to switch channel down
          Serial.println("transmit code to swithc channel down");
          lcd.setCursor(0,1);
          lcd.print("                ");
          lcd.print("Channel Down");
        }

        if(CS == 3){
          menuState = 0;
          //goes back to main menu
          Serial.println("go back to main menu");
          lcd.setCursor(0,1);
          lcd.print("                ");
          lcd.print("To Main Menu");
        }
      }
    }

    //Channel Input Menu
    if (menuState == 2){
      delay(100);
      buttonState1 = digitalRead(buttonPin1);
      buttonState2 = digitalRead(buttonPin2);
      Serial.println("in channel input menu");
      if(buttonState2 == 0){
        CI = CI + 1;
        if (CI == 5){
          CI = 1;
        }
        Serial.println(CI);
      }
      if(buttonState1 == 0){
        if(CI == 1){
          hundreds = hundreds + 1;
          if(hundreds == 10){
            hundreds = 0;
          }
        }
        if(CI == 2){
          tens = tens + 1;
          if (tens == 10){
            tens = 0;
          }
        }
        if(CI == 3){
          ones = ones + 1;
          if (ones == 10){
            ones = 0;
          }
        }
        if(CI == 4){
          menuState = 0;
          Serial.println("back to main menu");
        } 
      }
      Serial.print(hundreds);
      Serial.print(tens);
      Serial.println(ones);
    }

    if (menuState == 3){
      buttonState1 = digitalRead(buttonPin1);
      buttonState2 = digitalRead(buttonPin2);
      delay(50);
      Serial.println("in volume menu");
      if(buttonState2 == 0){
        Vol = Vol+1;
        if(Vol == 4){
          Vol = 1;
        }
        Serial.println(Vol);
      }
      if(buttonState1 == 0){
        if(Vol == 1){
          //transmit code to switch volume up
          Serial.println("Transmit code to switch volume up");
        }

        if(Vol == 2){
          //transmit code to switch volume down
          Serial.println("Transmit code to switch volume down");
        }

        if(Vol == 3){
          menuState = 0;
          Serial.println("Back to main menu");
        }
      }
    }
    if (menuState == 4){
      buttonState1 = digitalRead(buttonPin1);
      buttonState2 = digitalRead(buttonPin2);
      delay(50);
      if (buttonState1 == 0){
        //transmit code o switch TV off
        Serial.println("power off");
        lcd.noDisplay();
        power = 0;
      }
      if (buttonState2 == 0){
        menuState = 0;
      }
      delay(50);
    }
  }

  if(power == 0){
    buttonState1 = digitalRead(buttonPin1);
    buttonState2 = digitalRead(buttonPin2);
    if(buttonState1 == 0){
      power = 1;
    }
    else if(buttonState2 == 0){
      power = 1;
    }
    if(power == 1){
      //transmit code to turn power on
      Serial.println("power is on");
      lcd.print("Power ON");
      displayState = 1;
    }
  }
  if (buttonState1 + buttonState2 < 2){
    delay(1000);
  }
  else{
    delay(100);
  }
}