Hi, 

It depends how old they are. If they are very young, I would expose them to songs. If you know the languages yourself, it will be easy to translate anything they don´t understand. For French, the youtube channel Comptines Titounis  and in Spanish "Cantajuegos" are great. I hope it helps. I use the French one for my kids. 

Hellos TMichelle, I really don't know specific resources, what I've been using with my kid (2 years old) is making her watch every TV Show (Mickey Mouse, Dora the explorer, etc) in English since she is a small baby, now She is asking me questions in english I never taught her, It's amazing. I would like to know how old are your children and maybe it's easier to find something appropriate for them. 

Thank you Felipe and Rosa. My kids are 6 and 9. They have been watching a show in French or Spanish every day for years but I haven’t seen any improvement. They have also been to a two week French camp and 2 week Spanish camp. They do Spanish Rosetta Stone and French apps but still no improvement (sadly I think they take after me with not learning other languages well). I’ll ask “Hablas Espanol?” Or Parle vous Francaise? and they have NO idea what I’m talking about.

Rosa, I’ll definitely check out those YouTube channels. I just found Plaza Sesamo on Amazon Prime and there is an accompanying website with games so I’m hoping that will help for Spanish too.

I’m so desperate that I’m looking into flights and an extended stay Puerto Rico to see if I can’t immerse them in Spanish. It just won’t be easy or cheap but that is the closest Spanish speaking nation and it is a commonwealth to the USA so no passport needed.