What is the name of that whistling song that only goes do do do dodo do do do dododo and repeats No vocals Has like a upbeat 90s techno house chill out beat behind it Usually used on tv?

The song you're thinking of is likely "The Whistle Song" by DJ Tom Novy, which features a catchy whistling melody and was popular in the late '90s. It has an upbeat, chill vibe often associated with house music and has been used in various TV shows and commercials. If this isn't the exact track, it may also resemble other similar instrumental tunes from that era.