Serie.cs

using System;
using Newtonsoft.Json;


namespace AwesomeSeries.Models
{
    public class Serie
    {
        [JsonProperty("original_name")]
        public string OriginalName { get; set; }

        [JsonProperty("name")]
        public string Name { get; set; }

        [JsonProperty("first_air_date")]
        public DateTimeOffset FirstAirDate { get; set; }

        [JsonProperty("backdrop_path")]
        public string BackdropPath { get; set; }

        [JsonProperty("id")]
        public long Id { get; set; }

        [JsonProperty("vote_average")]
        public double VoteAverage { get; set; }

        [JsonProperty("overview")]
        public string Overview { get; set; }

        [JsonProperty("poster_path")]
        public string PosterPath { get; set; }
    }
}

SerieResponse.cs

using System.Collections.Generic;
using System.Text;
using System.Globalization;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;


namespace AwesomeSeries.Models
{
    public class SerieResponse
    {
        [JsonProperty("page")]
        public long Page { get; set; }

        [JsonProperty("total_results")]
        public long TotalResults { get; set; }

        [JsonProperty("total_pages")]
        public long TotalPages { get; set; }

        [JsonProperty("results")]
        public IEnumerable<Serie> Series { get; set; }
    }
}