[2020/12/01追記]
以下のサンプルコードをXcode12.2/Swift5.3.1で動作するのを確認しました。
[追記ここまで]
Xcode8とSwift3で、PlaygroundでViewを表示して試す仕様が変わったので試してみました。
TableView.playground
import UIKit

//****************************
// MARK: Model
//****************************
struct Album {
    let title: String
    let artist: Artist
    init(title: String, artist: Artist) {
        self.title = title
        self.artist = artist
    }
}

struct Artist {
    let name: String
}

let beatles = Artist(name: "The Beatles")

let albums = [
    Album(title: "Please Please Me", artist: beatles),
    Album(title: "With The Beatles", artist: beatles),
    Album(title: "A Hard Day's Night", artist: beatles),
    Album(title: "Beatles For Sale", artist: beatles),
    Album(title: "Help!", artist: beatles),
    Album(title: "Rubber Soul", artist: beatles),
    Album(title: "Revolver", artist: beatles),
    Album(title: "Sgt. Pepper's Lonely Hearts Club Band", artist: beatles),
    Album(title: "The Beatles", artist: beatles),
    Album(title: "Yellow Submarine", artist: beatles),
    Album(title: "Abbey Road", artist: beatles),
    Album(title: "Let it be", artist: beatles),
]

//****************************
//MARK: Table View
//****************************
final class BeatlesTableViewController: UITableViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    
    override func tableView(_ tableView: UITableView,
                            numberOfRowsInSection section: Int) -> Int {
        return albums.count
    }
    
    override func tableView(_ tableView: UITableView,
                            heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 80.0
    }
    
    override func numberOfSections(in tableView: UITableView) -> Int {
        return 1
    }
    
    override func tableView(_ tableView: UITableView,
                            cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = UITableViewCell(style: .subtitle, reuseIdentifier: nil)
        cell.textLabel?.text = albums[indexPath.row].title
        cell.detailTextLabel?.text = albums[indexPath.row].artist.name
        
        return cell
    }
}

//****************************
//MARK: Live View Configuration
//****************************

import PlaygroundSupport

// プレイグラウンドでWindowの表示

// Playgroundでの非同期処理を待つオプション
PlaygroundPage.current.needsIndefiniteExecution = true

let viewController = BeatlesTableViewController()
viewController.title = "I love Beatles."
let navigationController = UINavigationController(rootViewController: viewController)
navigationController.view.frame = CGRect(x: 0, y: 0, width: 320, height: 480)

//Live Viewに上記のViewを表示させる
PlaygroundPage.current.liveView = navigationController.view
#参考